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At Pine we stock a wide range of water quality meters from trusted vendors such as Horiba, YSI and Myron.  All of our instruments are ideal for measuring the water quality in lakes and rivers, around industrial waste water plants or factories and in other environmental applications.  With hundreds of instruments in stock, you can rest assured we have the perfect meter to fit your exact need.

To find out more, please click on a product from the list.  At Pine, we specialize in delivering total equipment solutions and providing technical advice on what to rent, and how to use it; the availability of our rental fleet is second to none, and all our equipment is always tested and delivered ready to use.


Hach 2100-P
Hach 2100-P
The Hach 2100P turbidimeter rental unit offers a level of performance previously possible only with laboratory instruments. Microprocessor-controlled operation and Hach's unique Ratio™ optics bring great accuracy, sensitivity, and reliability to field and in-plant testing.
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Hach DR 2800™ Portable Spectrophotometer
Hach DR 2800™ Portable Spectrophotometer

More than 240 Analytical Methods and Chemistries
The Hach DR 2800 Portable Spectrophotometer can be used for more than 240 analytical methods. (Test parameters are listed on page 3.) These methods include more than 30 TNTplus™ reagent vial tests that provide innovative barcode labeling for reliable, automatic method detection. All of the chemistries and supplies needed for these tests are available from Hach. The spectrophotometer can store up to 50 user programs and 500 data points, including sample and operator ID.


Use a USB Memory Stick to Update the Instrument or Transfer Data
Easily update DR 2800 spectrophotometer systems and transfer measurement data with a USB memory stick. Use it to stay current as Hach releases new test methods and chemistries. Two USB ports on the instrument allow for a computer to be connected in one port, when used with an upcoming software package, while the other is used to connect the spectrophotometer to a memory device or hand-held bar code scanner.


Small Footprint and Large Touch Screen Interface
The small footprint of the DR 2800 spectrophotometer—only 8.7 by 13.1 inches—lets it easily fit into any lab as well as being completely portable. The touch screen display is intuitive to use and ergonomic in design.

Runs on Either Line Power or Battery Power
Use the DR 2800 spectrophotometer in the lab with regular line power or in the field with the optional lithium-ion battery

Accommodates Multiple Cell Sizes and Sample Delivery Methods
The DR 2800 spectrophotometer holds eight types of Hach cells—including 1-in. square cells, 1x5-cm cells, 13-mm round vials (TNTplus), and 16-mm round vials. Three adapters are included with the spectrophotometer for other vial types such as 1-in. round/AccuVac® cells, multi-path 1-in./1-cm cells, 1x1-cm square cells, and Pour-Thru™ cells. The optional Pour-Thru cell kit is ideal for rapid liquid methods when high throughput of analysis is needed.

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Hach DR/2400 Portable Spectrophotometer
Hach DR/2400 Portable Spectrophotometer

With Hach's new DR/2400 Portable Spectrophotometer, you get:

  • The portable solution you need to optimize your water analysis program, anywhere, anytime.
  • The superior technology you expect in a spectrophotometer.
  • The ease of use you require to support all personnel.
  • The attractive price and value you want.

The DR/2400 Portable Spectrophotometer brings you the technically superior operation and innovative user interface of the popular DR/2500 Spectrophotometer, plus a design that makes it completely portable. Now you can have it all in your photometric water analysis program, whether it's municipal, industrial, environmental, or educational; in the lab, at the process site, or in the field.

Features and benefits
  • Automatic wavelength selection and calibration - Eliminate manual dialing and reduce errors.
  • "Favorite" programs menu -Store your frequently used tests to your own short list for easy access.
  • More than 130 preprogrammed tests - Just call up the test you need, each includes operator prompting selectable in four languages; select ""favorite"" programs quickly; add up to 50 single-wavelength, user-generated calibrations.
  • High-performance optical system - Achieve testing accuracy, instrument stability and longevity found in higher priced systems.
  • Graphic user interface with touch-screen display - Navigate easily through setup and testing with the touch of your finger; replaces the traditional keypad, repetitive scrolling, and keystroke combinations.
  • Comprehensive data management - Select time/date stamp, operator and sample ID; collect up to 1000 data points; download via RS-232 communication directly to printer or computer.
  • Battery-powered/compact size - Benefit from sophisticated spectrophotometer capability anywhere; line power converter included with instrument.
  • Programmed accuracy checks - Improve test technique and results with built-in, software-assisted standard additions checks.
  • Update capability - Keep your hardworking system updated with new Hach tests, using the plug-in Update Module programmed with new test calibrations; you add the calibration to your instrument memory without tedious keying sequences.
  • Accessories as you need them  - Pay only for the options you need, including HachLinkâ„¢ Software for data formatting, the Pour-Thru Cell for convenient and accurate high-volume testing, and a variety of sample cells to match your requirements. Available alone or as a completely equipped portable laboratory: take your DR/2400 Portable Spectrophotometer wherever needed.
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Hach DR/890 Portable Colorimeter
Hach DR/890 Portable Colorimeter

High-value, high-capability field instruments for water quality analysis. Hach DR/800 Series Colorimeters combine ease of use with high testing capability and field readiness. These durable, hand-held, filter-photometer instruments are designed specifically for the rigors of on-site testing, with rugged components and waterproof, dustproof, chemical-resistant housings.

Depending upon your testing needs, you can select a DR/820, DR/850 or DR/890 Colorimeter, preprogrammed to test for at least 20, 50 or 90 parameters, respectively, and equally suited for skilled analysts who value the time they can save, or for operators with limited training who appreciate ease of use and accurate results.

The DR/890 Colorimeter is the most complete, most capable of the DR/800 Series, suited to a wide range of testing needs and offering all standard DR/800 Series features, including datalogging, user-generated procedures, advanced software, RS-232 capability (with optional Data Transfer Adapter), and a large custom display. The instrument performs more than 90 tests.

STANDARD FEATURES

  • Capable:

    three models (20, 50, or 90 methods) with automatic wavelength selection
  • Preprogrammed:

    ready-to-use out of the box
  • Compact:

    true hand-held analysis, for use anywhere
  • Rugged:

    dustproof, waterproof, shockproof, worry-free (designed to meet IP67 standards)
  • Powerful:

    full datalogging and RS232 interface capabilities
  • Simple:

    menu-driven, step-by-step analysis
  • Affordable:

    choose the instrument you need or select a complete portable laboratory

KEY BENEFITS

  • Easy-to-use software offers push-button method selection, automatic wavelength selection and a preprogrammed method timer. Results are displayed immediately, with no countdown. The display is very easy to read, and includes result, units and parameter name.
  • The instrument retains the selected method until a new method is entered, even after the DR/800 is turned off and then back on at a later time. This allows a series of analyzes to be performed for the same parameter without reselecting the method.
  • Datalogging capability includes push-button record-keeping. Store data in the field for later access, with no delay in testing. The instrument stores up to 99 measurements in internal, non-volatile memory. Data stored includes date/time, parameter, program number, concentration/absorbance/ %T, sample number, and instrument serial number, all of which greatly simplify record keeping tasks.
  • Results are displayed directly in units of concentration, absorbance, or % transmittance. In many methods, concentration in alternate chemical forms is also available. For example, phosphate readings are available as P, PO4 and P2O5. Displayed results can be changed from one form to the next at the touch of a button.
  • User-program feature allows users to generate up to 10 custom procedures, with up to 12 data points each, and store them in non-volatile instrument memory for later use.
  • Advanced software includes the ability to automatically correct for reagent blanks, and the option to fine-tune calibration curves with the standard adjust feature.
  • Batteries provide self-contained power for field testing. Nominal battery life is 6 months with standard AA alkaline batteries. Rechargeable alkaline batteries are also available.
  • The optional Data Transfer Adapter (DTA) fits onto the instrument and accepts data sent from the instrument's infrared light emitting diode (LED) transmitter. The DTA converts data to standard RS232 format and connects directly to a computer or printer. Data can be printed or downloaded at any time--after it is stored in the instrument or while it is being collected.
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Hach FH950 Portable Velocity Meter
Hach FH950 Portable Velocity Meter

The lightweight, battery-powered FH950 Velocity Flow Meter was designed to provide accurate velocity measurements while simplifying the entire measurement process in rugged field environments. Multiple user-friendly features designed into the FH950 allow you to quickly and easily determine stream velocities for required discharge measurements, or use the FH950 to quickly calibrate area velocity flow meters, or verify primary devices such as weirs and flumes.

Reduce manhours 50%
The step-by-step user interface simplifies programming, delivers real-time data, and downloads directly to PC allowing a single person to take the readings and eliminating post site visit manual data transfer from logbook to PC

Automatically calculates total discharge based on USGS and ISO methods
Reduces time to manually calculate and likelihood of errors

Real-time velocity graphed on color display
Visualize velocity trends quickly

Lowest maintenance solution on the market
Electromagnetic velocity sensor with no moving parts never requires mechanical maintenance

Lightweight, rugged portable meter
Only 1.5 pounds

 

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Hach LDO Luminescent Dissolved Oxygen Probe
Hach LDO Luminescent Dissolved Oxygen Probe

Hach’s next generation LDO® (Luminescent Dissolved Oxygen) Probe requires no calibration for the entire 2 year life of the sensor cap, which means it is ready to start measuring your DO (Dissolved Oxygen) right out of the box. With an added cutting-edge 3D calibration procedure that is conducted prior to shipping, the probe will not drift and is more accurate than ever before. By utilizing Hach’s breakthrough luminescent technology for measuring DO, this optical probe has no membranes which need to be replaced or electrolyte solution to replenish, making it virtually maintenance free. To make sure routine cleaning cycles are never missed, the probe offers operators customizable diagnostic alert indicators, ensuring the probe can operate at its maximum performance level. An improved body design optimizes the probe’s temperature sensor to provide an even faster response time to process variability as well. The probe comes with a three year warranty, and the sensor cap has a two year warranty. So for supremely accurate DO measurements by a probe that does not require calibration and is membrane free, turn to an innovator in DO technology, and Hach’s next generation LDO Probe.

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Hach Pocket Colorimeter™ II for Chlorine or Manganese
Hach Pocket Colorimeter™ II for Chlorine or Manganese

The new Pocket Colorimeter™ II Filter Photometer is a true go-anywhere instrument. It's lightweight and battery operated, suitable for extended field work or quick, on-the-spot process monitoring. The instrument has two channels in which measurements can be made. Each channel will accept a user-defined calibration curve. Up to 10 standards can be used to determine the calibration. The curve is generated by a point-to-point straight line segment between each standard used. Linear and non-linear positive or negative slope calibrations can be performed. A calibration curve may also be manually entered from the keypad if a previously determined curve has been made on the Colorimeter. At least two data pairs (concentration and absorbance) are required.

Single Parameter go anywhere portable photometer
Lightweight and battery operated, suitable for extended field work or quick, on-the-spot process monitoring.

Fast, easy, accurate results
The Pocket Colorimeter II is simple enough to use that anyone can obtain reliable results with accuracy comparable to that of a lab instrument.

Factory-Programmed
Each Pocket Colorimeter II Kit Instrument is pre-programmed for one of more than 35 parameters. Many are based on EPA-approved methods. No manual calibration is ever required. Simply zero the instrument with a blank, insert the reacted sample, and read the result.

Lightweight, Rugged
The IP67 rated Pocket Colorimeter II Instrument really can be carried in your pocket! Weighing in at only .23 kg (8.1 oz), the water-resistant and impact-resistant shell protects electronics and optics for years of trouble-free operation.

Backlit Display, Data Logging, Recall
Clear readings even under difficult conditions, thanks to lighting and large figures on the display. Record 10 most recent data points along with time of measurement. No need to carry pen and paper to manually record results.

 

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Hanna 9142 Dissolved Oxygen Meter
Hanna 9142 Dissolved Oxygen Meter

The ever increasing demand for instant results for on-site analyzes has created a constant need for waterproof portable meters. The cold, rain, snow and dust associated with use in the field, may damage a meter, rapidly deteriorating its performance and life. HI 9142 is a rugged, water resistant meter that solves the common problems of field use. It is very simple to use: calibration is performed with HI 7040 zero oxygen solution while 100% calibration is done in air. There is no need to use chemical solutions or go through time consuming calibration processes. The polarographic probe (HI 76407/4) will take measurements accurate to 0.2 ppm O2/liter in less than 1 minute and is equipped with a 13' (4m) cable that allows measurements to be taken in even hard to reach places. For applications that require a longer probe cable, the HI 76407/10 probe with a 32.8 foot (10 meter) cable is available. The conic shape of the probe allows it to be used in all BOD5 measurements making it a truly versatile instrument. HI 9142 is supplied complete with an HI 76407/4 D.O. probe, 2 spare membranes, HI 7041S electrolyte solution, 4 x 1.5V AA batteries and instruction manual in a rugged carrying case.

Features
  • Water Resistant Casing - The rugged construction is water resistant, making it indispensable in the biological water treatment industry.
  • One Point Calibration - With the probe in saturated air, the meter can be calibrated without the need for chemical solutions.
  • ATC Circuitry - The meter's built-in Automatic Temperature Compensation circuitry will adjust all readings to provide the utmost accuracy.
  • Low Battery Indicator - The low battery indicator gives the user advanced notice to avoid taking an erroneous reading due to low power.
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Hanna 9828 Multiparameter Water Quality Portable Meter
Hanna 9828 Multiparameter Water Quality Portable Meter

The HI 9828 Multiparameter Portable Meter is a comprehensive analytical instrument, capable of measuring up to 13 critical water quality parameters (6 measured and 7 calculated), including pH, EC/TDS, ORP, DO, atmospheric pressure, and temperature. Some of the most advanced capabilities available are incorporated into this portable meter. Designed for intuitive operation, the menu-driven navigation is user-friendly and logical. A backlit 128 x 64 pixels graphic LCD, that automatically sizes the digits, allows full configuration of each measured parameter, displays on-screen graphing and has options for units and language selections, provides high-quality resolution and sophistication that is unsurpassed in its class.

Engineered with smart features such as auto recognition of pH/ORP probe, auto-ranging adjustments for EC/TDS readings, and measurement check - to eliminate erroneous readings - and more, our design actually simplifies operations and handling. There is virtually no learning curve to getting into this meter and quickly mastering it's capabilities. Each parameter is fully supported by the on-screen contextual HELP function, which is active during measurement and calibration modes. For field applications, Hanna's Quick Calibration allows the user to standardize pH, conductivity and dissolved oxygen, all with one solution! While in calibration mode, the meter will also assess and verify probe functionality. For monitoring and recording data, HI 9828 can be equipped with the optional T.I.S. - Tag Identification System: iButton©s with unique ID numbers. Installed at any sampling site, these tags will record and match specific location information with logging data. Comprehensive GLP features, such as last calibration date and status information, calibration time-out, and date and time tags associated with sample measurements, ensure consistency and accountability. The LOGGER function memorizes data from each connected sensors and log-on-demand & automatic logging can record up to 60,000 data samples. All data is downloadable to a PC via USB connectivity.

HI 9828 is designed for demanding outdoor environments. The meter is impact resistant and waterproof to IP67 standards (30 minutes immersion under 1 m of water), and the multi-sensor probe, HI 769828, with an IP68 rating, can be left underwater for an extended period of time. This intelligent probe contains a built-in microprocessor with amplifiers, interprets the high impedance signals from each sensor and sends the converted data to the meter. Consequently, common tolerance issues associated with high impedance signals, such as limiting cable length, and noise interferences are eliminated. The probe maintains reliable communication with the meter, and the user is warned of any problems, such as a broken cable line.

Five out of six measured parameters are housed in the probe: pH/pH mV, ORP, EC, % saturation and mg/L (ppm) oxygen and temperature. Each sensor is independently replaceable, and easy to maintain & clean. The sensors are protected by a rugged outer PVC/stainless steel sleeve, the design of which is suited for use in 2'' wells. The intact probe housing is rated to IP68. Standard cable lengths are 4, 10 and 20 meters and custom lengths are available upon request. The galvanic DO sensor has a built-in thermistor to provide fast temperature corrected readings. Of course, there is no polarization time for this sensor, so it is ready for measurement at a moment's notice. For EC, a 4-ring conductivity system ensures stable readings that are immune to polarization and the buffering effect of surface coating. Absolute conductivity, temperature corrected conductivity, salinity, specific gravity and TDS determinations are possible with measurements from this sensor. The meter automatically recognizes the presence of either the pH or pH/ORP sensor. Both sensors have a cloth junction which allows greater sensitivity, and are gel-filled for improved resistance to contamination. The meter also displays pH/mV readings, ideal for trouble-shooting. It accepts both alkaline and rechargeable batteries and can be recharged in the field via the 12V car accessory outlet adapter, included.

Order Information:
HI 9828 is supplied with HI 769828 multisensor probe (pH/ORP, EC, DO, temperaure), HI 9828-25 quick calibration standard solution (500 mL), probe maintenance kit, rechargeable C size Ni-MH batteries (4), power adapter & cable, car 12V accessory outlet adapter, HI 7698281 USB interface cable, HI 92828 Windows® compatible software and instruction manual in a rugged carrying case.

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Hanna 991301 Multiparameter Meter
Hanna 991301 Multiparameter Meter

These new waterproof instruments offer pH, conductivity, TDS (Total Dissolved Solids) and temperature readings in one easy to use meter. HI 991300 measures low range conductivity and TDS, while HI 991301 measures high range. Both instruments provide full scale pH readings and allow the user to select the temperature readout in Centigrade or Fahrenheit.

Other features include automatic calibration, automatic temperature compensation, selectable EC/TDS conversion factor, adjustable conductivity temperature coefficient, stability indicator, Battery Error Prevention System and battery strength percentage guage. All functions are accomplished with only two buttons. When the instrument is turned on, % battery power remaining is displayed preventing unexpected battery failures in the field. Calibration is quick and simple at one or two points and the user can select between the instruments’ memorized NIST or standard pH buffers. Conductivity and TDS calibration is also automatic with five programmed values to choose from. Depending on the application, the user can select the conversion factor between conductivity and TDS, as well as the temperature coefficient factor. All calibration and user settings are saved even during battery replacement. The HI1288 multiparameter probe compliments the meters’ outstanding features: the pH sensor utilizes gel electrolyte and a cloth junction for longer life, faster response and greater durability. The conductivity/TDS sensor is composed of graphite. This new technology eliminates oxidation and polarization errors which are the main causes for erroneous readings and frequent calibration. For added protection, the probe is housed in a rugged plastic sheath with reinforced rubber cable and steel DIN connector.

Features
  • 4 instruments in one

  • pH, conductivity, TDS and temperature all in one meter with a single probe.

  • Waterproof - HI 991300 and HI 991301 are housed in a compact waterproof, IP67 rated case.

  • Tailor made for your application - Customize pH/EC calibration, select EC/TDS conversion factor and temperature coefficient and choose the temperature scale that best fits your application.
  • Ease of use, accuracy and durability - Two button operation, microprocessor based, rugged instrument and probe construction.
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Hanna HI 9125N  Portable pH/mV Meter with Enhanced Design
Hanna HI 9125N Portable pH/mV Meter with Enhanced Design

The HI 9125N heavy-duty waterproof pH/mV meter has been designed with the latest microprocessor technology to provide laboratory results and accuracy under harsh industrial conditions.

A large dual-level LCD displays the pH and temperature simultaneously. Graphic symbols are provided for helping the user during the calibration process.

The pH calibration procedure is automatic with 5 memorized buffer values (4.01, 6.86, 7.01, 9.18 and 10.01), buffer recognition to avoid errors and automatic temperature compensation.

The HI 9125N can be used with ORP (Oxidation Reduction Potential) electrodes. The resolution automatically switch from 0.1 to 1 mV when the reading exceeds 400 mV.

The meter is also provided with the BEPS (Battery Error Prevention System) feature, which automatically turns the instrument off when the battery level is too low to ensure reliable readings.

  • Slim Design
  • Flat Back for Better Grip
  • New Larger LCD
  • Tutorial messages displayed
  • Electrode Diagnostics

Order Information:

HI 9125N is supplied with HI 1230B combination double-junction, gel-filled pH electrode, HI 7669/2W stainless steel temperature probe with 1 m (3.3') cable, pH 4.01 & pH 7.01 buffer solutions (20 mL sachets), 100 mL plastic beaker, instruction manual and rugged carrying case.

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Hanna HI 991301N Waterproof pH/EC/TDS/Temperature Meter (High Range EC)
Hanna HI 991301N Waterproof pH/EC/TDS/Temperature Meter (High Range EC)

HANNA® offers you a choice of 2 meters to meet your exacting requirements. HI 991300 and HI 991301 offer you the combination of pH, electro-conductivity, total dissolved solids and temperature. To increase precision, you can select the meter which will work best with your range of conductivity, from purified to brackish waters.

There are only 2 buttons, yet you can select from a range of calibration buffers and even the temperature scale (°C or °F) most familiar to you. The housing is waterproof and rated for IP 67 conditions.

The multi-parameter probe, HI 1288, includes pH, EC/TDS and temperature in one convenient, rugged handle.

Other user selectable features include different TDS factors from 0.45 to 1.00, and a range of temperature coefficients (ß) from 0.0 to 2.4% for greater consistency and reproducibility. Also selectable are standardized buffer recognition values.

To ensure against interference from transient electrical noise, a solid-state amplifier is integrated into the probe.

  • Larger LCD
  • Tutorial messages for calibration and setup
  • Missing probe indicator
  • Easier battery replacement
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Horiba U-52 Flow Cell (U-50 Series)
Horiba U-52 Flow Cell (U-50 Series)

Available now for rent, the Horiba U-50 Series flow cell measures and displays up to 11 parameters (U-53G only) simultaneously with new designed control unit and sensors. Experience the durability and performance of an instrument that exceeds our expectations in the field testing of ground water and surface water applications.

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In-Situ Pocket PC
In-Situ Pocket PC

Pocket-Situ is a NEW ultra portable user interface for all of In-Situ instruments that runs on the Compaq Pocket PC. It is light-weight, rugged, ultra-portable and it has ALL of the functionality of our Win-Situ 2000 software. Why take a laptop to field when you can take all of the power and functionality of our software in your hand?

  • Light-weight and easy-to-use
  • Use with all In-Situ instruments in place of laptop
  • Start, stop tests and download data from hundreds of units
  • View text report or graph
  • Rugged with hardshell plastic case
  • Watertight case with neckstrap for easy portability and outdoor use
  • Very affordable
  • Plus, all the benefits of the Pocket PC!

Pocket-Situ software for the Pocket PC is now commercially available from In-Situ and stands apart from ALL others as a fully functional instrument control and data management tool. We have taken all of the features of our popular Win-Situ 2000 and made them ultra-portable. Features like real-time readings, graphing, data downloads, remaining battery life and more all in the palm of your hand! Intuitive Wizards guide you through each operation

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In-Situ smarTROLL Multiparameter Handheld Water Quality Meter
In-Situ smarTROLL Multiparameter Handheld Water Quality Meter

The Future of Water Quality Monitoring
The smarTROLL Multiparameter (MP) Handheld combines industry-leading water quality sensors with revolutionary smartphone mobility. The intuitive iSitu® Application eliminates training time and runs on your iPhone®, iPod touch®, or iPad® device.

Simply connect the smarTROLL MP Handheld to a battery pack, launch the iSitu App, and start reading results. No warm-up time or tedious setup. The iSitu App guides you through spot checks, calibrations, and data management.

 

Measure Up to 14 Parameters

  • Chemical parameters: Dissolved oxygen, pH, ORP, conductivity (actual or specific), salinity, total dissolved solids, resistivity, and density
  • Physical parameters: Air and water temperature, barometric pressure, water level, and water pressure

Transport the smarTROLL Anywhere

  • Tired of transporting heavy or awkward equipment to the field? Now, all you need is your smartphone and the smarTROLL MP Handheld.
  • Eliminate expensive handheld meters, bulky multiparameter probes, and test kits.

Move Your Office to the Field

  • Use innovative smartphone technology for seamless work flow between office and site.
  • Instantly collaborate with colleagues and clients by using your smartphone to email data.
  • Work from anywhere, anytime with wired or wireless connectivity.
  • Use your smartphone to order supplies from the In-Situ e-store.
  • Access mobile help on your smartphone or call Technical Support for application tips … anytime.

Streamline Data Management

  • Consolidate all site information on your smartphone with the iSitu App.
  • Quickly find and recognize each of your sites by tagging sites with a photo and GPS coordinates.
  • Instantly review data with colleagues by sending them a snapshot of real-time results.
  • Log data to your smartphone. When it’s convenient, download results to a standard file format (*.csv).
  • Download logs manually through iTunes®. Share data with all mobile devices on your iCloud account. Email data logs from the field

Increase Productivity

  • Quickly set up the handheld—Simply connect the battery pack to the probe, launch the iSitu App on your smartphone, and start reading results.
  • Calibrations can last for months.
  • Eliminate training time—The intuitive iSitu App guides you through site setup, water quality checks, and data management.
  • Get instant results—No warm-up or stabilization time required. Sensors are calibrated with NIST®-traceable standards (where applicable).

Reduce Maintenance & Eliminate Errors

  • Use the robust smarTROLL System for demanding field applications.
  • Eliminate manual steps—No more transcription errors. Plus, smart sensors automatically recognize calibration solutions and store calibration data in the sensors.
  • Get accurate DO results—Internal logic automatically compensates for barometric pressure and salinity.
  • Stay current with automatic iSitu App updates.
  • Understand sensor performance with automatic sensor diagnostics, data quality indicators, calibration reports, and RDO® Fast Cap replacement reminder.

 

 

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In-Situ Troll 9500 w/ Low Flowcell
In-Situ Troll 9500 w/ Low Flowcell

The Troll 9500 saves time and money with convenient features like Quick-Calibrations, automated Low-Flow sampling, field-replaceable sensors, long lasting internal power, and more. Our field proven Optical D.O. sensor ( RDO) reduces maintenance and the need to visit the site. The Troll 9500 also features a corrosion-resistant housing that is suitable for fresh, waste, and marine waters. The battery compartment and cable connector are IP67 rated, even when detached.

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LaMotte 2020we Portable Turbidity Meter
LaMotte 2020we Portable Turbidity Meter

Industry-leading precision, sensitivity, and dependability in one of the most innovative handheld turbidity meters available on the market!

The multi-detector optical configuration assures long term stability and minimizes stray light and color interferences. All turbidity readings are determined by the process of signal averaging over a 5 second period. This minimizes fluctuations in readings attributed to large particles and results in rapid, highly repeatable measurements. Ideally suited for both low-level drinking water applications as well as monitoring high turbidity in the field.

Portable turbidity meter complies with USEPA 180Unit of Measure:.1 Standard

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MYRON 6P WATER QUALITY TESTER
MYRON 6P WATER QUALITY TESTER
The 6P Ultrameter, packages multiple parameters for water quality into a single all-purpose instrument. The 6P measures conductivity, total dissolved solids (TDS), resistivity, pH, oxidation reduction potential (ORP) and temperature. The testing features of the 6P are appropriate for environmental groundwater testing, as well as for use in boilers and cooling towers, reverse osmosis, plating and parts washing, fountain solutions for printing, irrigation water, hydroponics, process verification, deionization and others. The 6P simplifies and streamlines water quality analysis. Just fill the cell cup, push a parameter key and take the reading. The instrument is fast, accurate and waterproof to three feet. Memory stores and recalls up to 20 readings.
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QED Compressor 12V, Model 3020
QED Compressor 12V, Model 3020

Oil-less electric compressor

The 3020 Compressor is a useful option for low-flow sampling of wells at depths to 100 feet. It runs on a 12 volt DC electrical supply, and can be connected to your vehicle's battery with the supplied cables, or driven by a separate power source.

At just 15x11x6-1/2'' and 15 pounds, it offers an extremely convenient, portable pneumatic power choice for many sampling systems.

Electric Compressor Specifications:

  • Model No. 3020
  • Dimensions 15 x 11 x 6.5'' (38x28x17 cm)
  • Weight 15 lbs (7 kg)
  • Power Supply 12 VDC (battery cable)
  • Max. Pressure 100 PSI (6,895 kPa)
  • Rec. Max. Lift 100 Feet (30 m) optimal, can reach 200 feet
  • Output 0.21 SCFM @ 100 psi (0.357 m3/h @ 6,895 kPa)
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QED Micropurge Basics Flow Cell MP20
QED Micropurge Basics Flow Cell MP20

MicroPurge Basics Flow Cell.  Water analyzer and engineered flow cell package with PurgeScan technology.  PurgeScan provides automatic notification of parameter stabilization, with visible/audible signals.  Single sonde reads pH, dissolved oxygen (DO), conductivity, ORP (redox), and temperature. Meter can log up to 200 frames of data, and shows five parameters at once. Unit weighs 14 lbs.

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QED Micropurge MP10, MP10H and MP10UH Controller
QED Micropurge MP10, MP10H and MP10UH Controller

Available Models: MP10, MP10H and MP10UH

The MicroPurge® basicsTM MP10 Controller revolutionizes low-flow sampling with advanced logic control of purge flow and well drawdown. Simple up-down arrow keys increase and decrease purge flow, driving a microprocessor to recreate expert techniques for low-flow adjustment. Then, optimized settings are identified for recall in the next round of sampling.

The MP10 also offers an easy way to prevent excessive monitoring well drawdown during purging, by linking to the optional MP30 Drawdown/Water Level Meter.

The lightweight, compact MP10 sets the pace for a new generation of genuine MicroPurge basics equipment, first in control and power for low-flow sampling.

Simple, stable, repeatable flow rate setting

The MP10 puts you in control of the most advanced low-flow sam-pling system ever made. You will purge and sample quickly and easily, with precise, steady low-flow pumping rates from one sampling event to the next.

QED's new basics equipment is also designed to take advantage of the opportunities for downsized equipment, which is lighter and more portable, reduces equipment cost and increases sampling crew productivity. Simplified, sealed electronics are put together in a design that delivers famous QED durability and value.

MicroPurge basics controllers can be connected to the MP30 Drawdown Meter for optional Automatic Drawdown Control, an industry first.

Multi-mode digital contro l

The MP10 gives you three easy-to-use operating modes, to cover every sampling protocol and situation.MicroPurge (MP) Mode quickly optimizes control settings to reach the desired pump flow rate. You don't have to worry about calculating pump cycles or refill and discharge times.

ID Mode instantly recalls optimized settings previously established for each well, providing precise, consistent performance from event to event.

User Set (MN) Mode provides manual control of pump operation for extreme depths and other special cases.

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QED Micropurge MP15 Control and Power Pack
QED Micropurge MP15 Control and Power Pack

The MP15 MicroPurge Backpack combines advanced low-flow control with the quiet power of a built-in compressed gas source, for the ultimate in portability and ease of use in sampling ground water with bladder pumps.

The MicroPurge MP15 Controller revolutionizes low-flow ground water sampling with advanced logic control of purge flow and well drawdown. Simple up-down arrow keys increase and decrease purge flow to meet low-flow requirements. Once optimized, settings can be easily recalled in the next round of sampling.
Portable power to sample ground water with any bladder pump

The easy, advanced MicroPurge flow rate and drawdown control features are housed in a molded case along with a lightweight CO2 cylinder, putting everything you need to operate bladder pumps into one easily portable unit. A standard padded nylon case protects the MP15 MicroPurge control & power pack in transport, provides over-the-shoulder on-site carrying convenience, and even has a hook on the back to let you hang it from the well casing during sampling.

With this combination, a complete sampling setup can be carried by a single person, to reach wells where trucks or even compressor carts can't go.

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QED Micropurge MP30 Drawdown Meter
QED Micropurge MP30 Drawdown Meter

The MP30 Drawdown/Water Level Meter is unique. With its link to the MicroPurge pump controller for automatic drawdown control, you'll never have to worry about overpurging a monitoring well again. By constantly keeping track of well level for you, the MP30 removes one of the variables that can make lowflow sampling a challenge. Even if distractions occur, you'll have the confidence of knowing that the well will not be pumped down to excessive drawdown levels that could compromise your sample integrity.

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QED MP20D
QED MP20D

The QED MP20D flow cell is engineered to allow the sensing probes to make rapid, accurate responses to changes in purge water parameters. The flow cell is 100% transparent for ease of observation. The low-volume, fast-response cell couples to the sonde with a quick, bayonet attachment, and can be used in either a horizontal or vertical position. The incoming flow is directed in a tangential path around the flow cell to provide fast, thorough mixing with no 'dead spots' that could affect the accuracy of purge parameter measurements. Bubbles in the flow stream are vented out of the cell and away from the probe purge water analysis. The multiparameter probe has a special sensor with built-in stirring for highly stable dissolved oxygen readings. All sensors are easy to calibrate and the unique pH preferencce electrode is fully field-serviceable, a huge advantage in keeping field work on track as well as reducing pH probe replacement costs.

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QED MP40 basics Engine/ Compressor
QED MP40 basics Engine/ Compressor

The rugged MicroPurge MP40 Portable Air Compressor eliminates the weight and part count of other oil-less field compressors. The high quality compressor is directly coupled to a smooth-running Honda engine, without the weight and complexity of pulleys, belts, and belt guards. The MP40 compressor is mounted in a light weight aluminum cage for easy carrying at only 48 pounds total weight. A new hose reel option (MP40-2; separate rental) attaches to the compressor cage so that wells up to 200 feet away can be reached without having to move the compressor unit.

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QED MP50 Controller/12 VDC Compressor
QED MP50 Controller/12 VDC Compressor

The MP50 combines our highly successful MP10 Digital Controller and 3020 Compressor into one convenient, integrated unit.It puts you in control of the most advanced low-flow sampling system ever made. You will purge and sample quickly and easily, with precise, steady low-flow pumping rates from one sampling event to the next. QED’s new basics equipment is also designed to take advantage of the opportunities for downsized equipment, which is lighter and more portable, reduces equipment cost and increases sampling crew productivity. Simplified, sealed electronics are put together in a design that delivers famous QED durability and value. MicroPurge basics controllers can be connected to the MP30 Drawdown Meter for optional Automatic Drawdown Control, an industry first.

Advantages

  • Built-in rugged, durable fan-cooled 12 VDC air compressor, with the option to use an external air source, if desired.
  • Exclusive MicroPurge control mode uses simple arrow keys to adjust low-flow rates easily and repeatably, using a microprocessor to re-create the flow adjustment strategies used by experienced samplers.
  • Connection port allows linking to optional MP30 Drawdown/Water Level Meter,which signals MP50 Controller to enter standby mode if drawdown limit is exceeded.
  • Multi-mode digital control includes MicroPurge Mode, ID Mode for repeat events, and manual control.
  • Weatherproof controls are housed in a rugged, compact (16'' x 13'' x 6.5'') case.
  • Full digital display of all setting and status information
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Smith Root LR-24 Electrofisher
Smith Root LR-24 Electrofisher

Quick Setup
Quick Setup will select a voltage level necessary to achieve 25 watts average power output through the water between electrodes. This setup uses a default setting of a pulsed DC waveform with a frequency of 30 Hz and a 12% duty cycle (equivalent to a 4ms pulse width). All settings can be adjusted up or down from this starting point to achieve levels necessary for fish capture. This is very useful when electrofishing in a new area and you're not sure what settings to use.


Dual Output
This feature allows the operator to set up two completely independent sets of waveforms and voltages and toggle between them simply by releasing and pressing the anode pole switch in less than one second. This can be very useful if working in waters with multiple age classes, or multiple species where the optimal settings may be quite different.

Safety Features
Emergency stop switch, twin audible alarms, tilt and immersion sensors and Anode-Out-of-Water sensor, combined with the ETL safety certification make the LR-24 the safest backpack electrofisher available. With the ETL Listed Mark on the LR-24 Backpack Electrofisher, researchers can be confident that they are using the safest backpack electrofisher in the world.

Power Limit Key and Power Limit Mode
The Power Limit Key allows the user to limit the maximum average output power. It is defaulted to 400 watts, which is the maximum average power output that the LR-24 is capable of producing. It can be easily changed to a lower limit, which can be useful if a study requires staying within a certain power level. The user can decide whether the frequency or the voltage will be automatically decreased in order not to exceed the output power at that limit.

Precise control over output settings
Voltage can be adjusted in 5 volt increments, frequency in 1 Hertz increments, and duty cycle (pulse width) in 1% increments. This is very desirable given study results which indicate that fish injury rates decrease corresponding to decreases in all of these settings. Exact control of the settings allows for much greater control of the output waveforms.


Numerous waveform choices
The LR-24 can produce straight DC, pulsed DC, and Burst of Pulses (previously known as CPS waveform).

Rugged Construction
Roto-molded packframe and molded control box housing offer tough structural support in a light-weight package. The removable battery cover protects all cable connections from environmental conditions and wear and tear.

Storage locations for up to 10 user selected settings
There are 10 storage locations available to either pre-program desirable settings or to store settings currently in use. These storage locations are filled with Factory Default Stored Waveforms, but can be replaced one by one with settings the user prefers. These can be pre-programmed before going in the field or saved and stored while in the field. This can be very useful if a setting has been found to be very effective with a particular species, or it can be of use if a project supervisor wants to standardize sampling and provide settings for crews to use in the field. Factory default stored waveforms can be restored if desired.

Suspension System
The easy-to-fit Cordura suspension harness allows for quick adjustment, making multi-user operations fast, simple and convenient.

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Solinst Model 464 Electronic Pneumatic Pump Control Unit
Solinst Model 464 Electronic Pneumatic Pump Control Unit

The Model 464 Electronic Control Unit is available in 125 psi or 250 psi versions, and uses 4 AA alkaline batteries that last up to 100 hours of normal use. These Controllers can also be operated manually, using only a compressed gas source.

The 464 Electronic Pump Control Unit has automatic preset sample modes from low through high flow settings. In addition, up to 99 user-created flow rates can be saved in FRAM memory. The Pump Control Unit allows faster purge rates and precise low flow control to ensure a representative sample at 100 ml/min or less when sampling for VOCs (Volatile Organic Compounds).

These convenient Pump Control Units are rugged, dependable and suitable for all environments. They are supplied with the drive and supply lines. Quick-connect fittings allow instant attachment to dedicated well caps, portable reel units and to an air compressor or compressed gas source.

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STS SMF 4 Fluorimeter
STS SMF 4 Fluorimeter

Quick and Easy Detection of Organic Pollutants

The STS SMF4 Fluorimeter allows instant quantification of Tryptophan, a surrogate for BOD, in water samples on site, allowing immediate decisions to Instant readings on site without laboratory analysis costs and timescalebe taken regarding water quality and control actions.

The great benefit of the SMF4 is the speed of measurement enabling large surveys to be undertaken, recorded and analysed within a matter of hours, whilst also giving real time information on immediate pollution issues.

The design of the SMF4 draws heavily on the research carried out by Prof Andy Baker and his team at the University of New South Wales & formerly of Birmingham University (UK), who showed that Tryptophan is an excellent indicator of anthropogenic pollution and that its measurement by fluorescence was straightforward. Further research allowed strong correlations to be made between tryptophan and the standard Biological Oxygen Demand test, but with an instant result rather than a 5 day delay.

 

Common Sources of Illicit/Illegal Discharges:

• Buildings improperly plumbed
• Leaking service laterals and sanitary sewers
• Uncapped building traps and cleanouts
• Septic tank issues
• Spills and illegal dumping
• Cross connected sewers
• Sanitary sewer overflows

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TSS Portable Hand-held Turbidity, Suspended Solids, and Sludge Level System
TSS Portable Hand-held Turbidity, Suspended Solids, and Sludge Level System

Complete TSS Portable Hand-held Turbidity, Suspended Solids, and Sludge Level System; includes meter, probe, rechargeable batteries, charger for rechargeable batteries with four plug adapters, manual, quick start guide and carrying case.

Three Parameters in One Instrument
The Hach TSS Portable Hand-held Turbidity, Suspended Solids, and Sludge Blanket Level Instrument's unique multi-beam alternating light method with infrared diode system gives it a broad measuring range for both turbidity and suspended solids in one portable handheld instrument.

Multiple Calibration Curves for Convenience
It stores up to four different calibration curves for suspended solids and one for turbidity. There's no need for constant re-calibration for different locations or types of sludge.

Easy Sludge Blanket Levels
The sludge blanket level can be measured by setting the units to mg/L, g/L or percent. Calibrate the instrument and then slowly lower the sensor into the clarifier. The suspended solids concentration will significantly increase as it reaches the sludge blanket level. Once the blanket level is reached, examine the sensor cable which is marked every meter to determine the sludge blanket level depth from the water surface.

Air Bubble Compensation for Accuracy
The instrument software automatically compensates for air bubbles to prevent its influence on the measurement. Turbidity is pre-calibrated with a calibration curve stored in the instrument. For suspended solids, each of the calibration curves can be closely adjusted to the laboratory results because each calibration curve can use up to three points per curve plus a zero value.

Durable Materials for Long Life
The probe is made of polished stainless steel with a scratch-resistant sapphire window to withstand harsh environments. Polished stainless steel helps keep particles from sticking to the surface of the probe. The internal memory stores up to 290 measuring values, including time, date, measurement, location, and homogeneity. Three operating modes are available: single, interval, or continuous.

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Turner Designs Aquafluor Handheld Fluorometer
Turner Designs Aquafluor Handheld Fluorometer

The Aquafluor Handheld Fluorometer is a lightweight, inexpensive, handheld fluorometer/turbidimeter. It is ideal for the user who needs a quick measurement away from the laboratory. It's dual-channel capability allows the user to measure either fluorescence or turbidity in a sample.

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YSI 30 Salinity, Conductivity, Temperature Instrument
YSI 30 Salinity, Conductivity, Temperature Instrument

The YSI Salinity, Conductivity and Temperature Instrument is ready to use when you turn it on. A large, backlit display shows temperature along with conductivity, temperature-compensated conductivity, or salinity. In addition, the YSI 30 lets you set the reference temperature and the temperature coefficient if you're measuring temperature-compensated conductivity. The YSI 30 allows for user calibration for highest accuracy. Built-in storage chamber protects the probe when not in use.

The YSI 30M, which stores up to 50 data sets, is also available. The 100 foot cable instrument is automatically a Model 30M when purchased!

Features

  • Weighted probe sinks easily
  • Autoranging enables fast, convenient conductivity measurement
  • Automatic function check verifies that the system is working properly
  • Cables are available in 10, 25, 50 and 100 foot lengths ( 3, 7.6, 15.2 and 30.4 m)
  • Meets IP-65 water tightness requirements
  • YSI 30M is CE compliant
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YSI 55 DO Meter
YSI 55 DO Meter

Field-proven, the YSI 55 DO Instrument measures dissolved oxygen in mg/L or percent saturation. Offering push-button calibration with a built-in calibration chamber, direct salinity, and altitude compensation, the YSI 55 provides simultaneous readings of oxygen and temperature. Dissolved oxygen readings are automatically compensated for temperature. Also available is the YSI 55D with a detachable cable.

Features

  • Probe is weighted for quick sinking
  • Large, easy-to-read backlit display
  • Cables are available in 12, 25, or 50 feet lengths (3.7, 7.6 and 15.2m)
  • Meets IP-65 water tightness requirements
  • Low-battery indicator on the display
  • CE compliant version available
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YSI 556 Multiprobe Water Quality Meter
YSI 556 Multiprobe Water Quality Meter

Rugged and reliable, the YSI 556 MPS water quality analyzer (Multi probe system) combines the versatility of an easy-to-use, easy-to-read handheld unit with all the functionality of a multi-parameter system. Featuring an IP-67, impact resistant case, the YSI 556 MPS simultaneously measures dissovled oxygen, pH, conductivity, salinity, temperature and ORP.

This monitor is designed for water quality applications and mainly used in the environmental industry.   While this unit comes with a 4m cable, it also rents with the option of a 10m or 20m cable and Flow Cell.

Carrying Case - the instrument comes standard with a soft-sided carrying case with enough space for the YSI 556 MPS, a 4m cable (10 meter cable optional), flow cell and calibrating supplies. A handstrap can be connected on either the right or left side of the instrument.

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YSI 60 pH Meter
YSI 60 pH Meter

The YSI 60 measures pH and temperature at depths up to 100 feet. The replaceable, rugged pH electrode has a one year warranty. Tough, watertight case withstands the rigors of field work. Built-in storage chamber protects the probe when not in use.

Features

  • Simultaneous readings of pH and temperature
  • Memory for up to 50 readings
  • User replaceable pH electrode
  • Large, backlit display
  • Weighted probe sinks easily
  • Cable available in four lengths, 10, 25, 50 or 100 feet (3, 7.6, 15.2, 30.5m)
  • IP-65 water tightness requirements
  • CE compliant version available
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YSI 600XLM V2
YSI 600XLM V2

The YSI 600XLM provides economical logging in a small package for both surface and groundwater. It measures a range of fundamental parameters, including oxygen, temperature, conductivity, pH, ORP, non-vented level and salinity. The log will capture parameters at varied intervals and can store 150,000 readings.

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YSI 6820 Multiparameter Instrument
YSI 6820 Multiparameter Instrument

A cost-effective sampling system with 14-parameter reporting capability, the YSI 6820 is ideal for profiling and spot-checking in lakes, rivers, wetlands, wells, estuaries, and coastal waters. The YSI 6820 measures nine parameters simultaneously, including dissolved oxygen, using the YSI Rapid PulseTM stirring-independent sensor and turbidity or chlorophyll, using a sensor with a self-cleaning feature for long deployments, or a standard sensor for simple sampling. Even though the YSI 6820 is small in size it is designed to sink without additional weight.

RS-232 and SDI-12 are standard; the YSI 6820 easily interfaces with a YSI 6200 Data Acquisition System, many other data collection platforms for long-term deployment, or a YSI 650 Multiparameter Display System for sampling.

All YSI 6-Series sondes can be used with YSI EcoWatch for Windows software. EcoWatch is communication and data processing software that is fast and easy-to-use. See the whole picture with a single program, obtain statistics easily, merge data files, and run large studies.

FEATURES

  • Ideal for sampling
  • Easy connection to the YSI 650 Handheld Multiparameter Display System or YSI 6200 Data Collection Platform
  • Field-replaceable probes
  • CE compliant Retrieve data on-site or remotely via radio, phone or satellite
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YSI 6920 Multiparameter Water Quality Meter
YSI 6920 Multiparameter Water Quality Meter

The YSI 6920 is an economical logging system for long-term, in situ monitoring and profiling. It will log all parameters at programmable intervals and store 150,000 readings. At 15-minute intervals, it will log data for about 30 days.

A cost-effective logging unit rated at 200 feet, the YSI 6920 can monitor up to 14 parameters simultaneously, including oxygen with the YSI Rapid PulseTM stirring-independent sensor and turbidity sensor not affected by variations in ambient light that has a self-cleaning feature. A self-cleaning chlorophyll sensor may be installed instead of the turbidity sensor.

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YSI 6920 V2 Multiparameter Sonde
YSI 6920 V2 Multiparameter Sonde

The 6920 V2 is a cost-effective sampling system for both spot-sampling and long-term unattended monitoring, with up to a 14-parameter reporting capability.

Available optical sensors:

  •     ROX optical dissolved oxygen
  •     Blue-green algae
  •     Chlorophyll
  •     Turbidity
  •     Rhodamine
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YSI EXO1 Multiparameter Sonde
YSI EXO1 Multiparameter Sonde

The EXO advanced water quality monitoring platform includes the versatile multiparameter EXO1 sonde for estuarine, surface water, or ground water applications.

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YSI Model 550 Handheld Dissolved Oxygen Meter
YSI Model 550 Handheld Dissolved Oxygen Meter

Looking for a rugged, field worthy instrument for measuring dissovled oxygen? The new YSI 550A Dissolved Oxygen instument features a waterproof (IP-67), impact-resistant case and innovative field-replaceable dissolved oxygen electrode modules. Measure dissovled Oxygen and temperature simultaneously using YSI's proveb polarographic technology for oxygen and YSI temperature precision thermistors, the planetwide standard for accuracy. The new PE membranes provide faster response times with less stirring dependence - saving time with every reading!

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YSI Model 63, 25ft Cable
YSI Model 63, 25ft Cable

The handheld YSI 63 measures pH, conductivity, salinity and temperature with a single probe. Its tough, watertight case withstands the rigors of field work. A b uilt-in storage chamber protects the probe when not in use. A bright, backlit display results in readings being easy to see. The YSI 63 pH instrument has memory for up to 50 readings.

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YSI Model 85, 25ft Cable
YSI Model 85, 25ft Cable

Featuring breakthrough multiparameter monitoring, the YSI 85 instrument offers simultaneous dissolved oxygen, conductivity, salinity and temperature measurement. Automatic function verifies that the system is working.

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YSI Professional Plus Multiparameter Water Quality Meter
YSI Professional Plus Multiparameter Water Quality Meter

The YSI Professional Plus handheld multiparameter meter provides extreme flexibility for the measurement of a variety of combinations for dissolved oxygen, conductivity, specific conductance, salinity, resistivity, total dissolved solids (TDS), pH, ORP and temperature. Also a very powerful lab instrument for BODs, pH and ORP.

Additional probes are available on request which measure the following parameters: pH/ORP combination, ammonium (ammonia), nitrate, chloride.

The Pro Plus instrument meets the demands of true field work. The instrument is rated to IP-67 standards even without the battery cover on. Other tough features include a Mil-spec connectors and a rubber overmolded case. In-house testing procedures also include 1-meter drop tests from all angles to ensure expected field-durability.

The instrument provides numerous benefits from the following features; 5,000 data-set memory, password protection, backlit display and keypad, graphic display with detailed Help functionality, re-cal prompts, user defined fields, detailed GLP, auto stable, Hold All Readings function, Data Manager software for the desktop, USB connection, auto-buffer recognition, and flexible folders and site lists for logging data.

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