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Solinst has developed some of the most reliable and easy to use ground water instruments in the industry, which is why Pine stocks many of their water level meters, dataloggers and interface probes that our hydrogeologists and hydrologists customers request most often. We are confident to carry Solinst in our fleet because we know that behind all of their instruments stands a development team of experienced and highly skilled professionals including hydrogeologists, geotechnical engineers, manufacturing and electronic professionals and technicians.


Solinst Products

Solinst 3001 Levelogger Gold
Solinst 3001 Levelogger Gold

The Levelogger Gold is a water level and temperature recording device. It combines a datalogger, 10-year battery, pressure transducer and temperature sensor, in a small, minimal maintenance, 7/8" x 6" (22 mm x 154 mm) stainless steel housing. The sealed Faraday cage design greatly simplifies maintenance and provides protection against electrical spikes caused by lightning. A Zirconium Nitride coating resists corrosion.

The Levelogger Gold offers high resolution and reliability with an accuracy of 0.05%. The Levelogger Gold has excellent transducer, temperature and clock accuracies. Altitude, water density, temperature and barometric compensations also add to the accuracy and instrument stability.

High accuracy, long-term stability and an internal battery that lasts for 10 years when reading every minute, make Leveloggers the ideal devices for recording water levels. A Barologger provides the easiest and most accurate method of barometric compensation.

Solinst 410 Peristaltic Pump
Solinst 410 Peristaltic Pump

Designed for field use, the reversible flow Peristaltic Pump from Solinst is ideal for vapor sampling or water sampling from shallow wells and surface water. It can be used for vacuum pumping and for pressure delivery of liquids or gases.

Solinst 101 200ft Water Level Meter
Solinst 101 200ft Water Level Meter

The Model 101 Water Level Meter uses a choice of probe designs, attached to a permanently marked polyethylene tape, fitted on a well-balanced reel. It is powered by a standard 9 volt battery housed in an easy-access battery drawer. The conductors embedded within the tape each have seven strands of stainless steel for strength and flexibility. The probe incorporates an insulating gap between electrodes. When contact is made with water, the circuit is completed, activating a loud buzzer and a light. The water level is then determined by taking a reading directly from the tape at the top of the well casing or borehole.

Sol' 122/200' Inter Meter
Sol' 122/200' Inter Meter
Solinst Oil/Water Interface Meters give clear and accurate measurements of product level and thickness in wells and tanks.

Solinst 3001 Water Level Logger/Meter
Solinst 3001 Water Level Logger/Meter

The Levelogger Edge is a self contained water level datalogger, using infra-red data transfer powered by a 10 year lithium battery, offering the flexibility of installing by use of a Direct Read Cable, wireline or Kevlar cord. The Levelogger Edge has a memory capacity of 40,000 temperature and water level data points, or up to 120,000 using the new compression algorithm in linear sampling mode.

New Levelogger Software Version 4.0, written to support the new Levelogger Edge, Levelogger Junior, LTC Levelogger Junior, Rainlogger, Leveloader and is backwards compatible to support the Levelogger Gold series. Version 4.0 offers many new features, including the ability to barometrically compensate multiple Levelogger data files simultaneously.

Solinst 3001 Leveloader Gold
Solinst 3001 Leveloader Gold

The Leveloader Gold is a field-ready, backwards compatible data transfer unit designed for use with all versions of the Solinst Levelogger®, Rainlogger and Barologger. It is used to download, store and transfer multiple data files, using 8 Mb of non-volatile FLASH memory.

The Leveloader™ has a rugged, water-resistant, ergonomic exterior and stores up to 1,390,000 LT readings, 930,000 LTC readings or 34 full Levelogger downloads. Stored data can be scrolled through before transfer to a PC. The Leveloader can also be used to display data in real-time, which is ideally suited for conducting conventional pumping tests.

Solinst Discrete Interval Sampler Model 425
Solinst Discrete Interval Sampler Model 425

Discrete interval sampling is ideal for obtaining truly representative water samples from below floating product layers (LNAPL) and for obtaining samples of product itself (LNAPL and DNAPL).

It is also used to profile open bodies of water, open boreholes and screened wells, and to collect samples from distinct levels or points of inflow.

There is negligible disturbance as can be caused by pumping and purging. Mixing of water from different levels in the well is minimized.

Purging and disposal of purged water can be avoided. Sampling directly from a specific depth results in the collection of water which is most representative of the groundwater outside of the well at that depth.

Discrete interval sampler

The Solinst Model 425 is a stainless steel sampler, with LDPE tubing mounted on the convenient Solinst reel. The reel has a pressure attachment for the high pressure hand pump, and a pressure/vent switch which is used to apply and release the pressure on the sampler. A sample release device is included with each Discrete Interval Sampler.

The sampler is pressurized using a high pressure hand pump before being lowered into the well to prevent water flowing into the sampler on the way down the well. Once the desired depth is reached, the pressure is released and hydrostatic pressure fills the sampler with water directly from the sampling zone. A floating checkball inside the 1.66” sampler prevents water from entering the tubing, thus avoiding the need to decontaminate the tubing.

When the sampler is filled, it can be repressurized and raised to the surface. The sample is decanted using the sample release device, which regulates flow and minimizes degassing of the sample.

The sampler is ideal for groundwater sampling from below an oil/product layer on the surface of the water, as it allows a sample to be obtained which is untouched by the oil. The sampler is easily disassembled for decontamination.

  • Obtaining a representative groundwater sample from below oil/product layers
  • Discrete interval sampling in lakes, rivers and wells
  • Chemical profiling of wells
  • Sampling at points of inflow to well
  • LNAPL and DNAPL sampling
Voc sampling

Discrete interval samplers (DIS) are excellent for VOC sampling. There is no mixing with water from different levels in the well. The sample does not travel through a long length of tubing, risking loss of volatile organics. The sample has minimal contact with air.

For the most accurate VOC results, the Model 425T Transportable DIS can be used. It retains the volatiles at down-hole conditions with zero headspace during retrieval and transport to the laboratory.

  • High quality samples
  • Sample has not been pumped through tubing
  • No mixing of water from different levels
  • Minimal disturbance of the water
  • Easy disassembly for decontamination
  • Avoids purging and disposal of purge water
  • Easy operation and transportation

Samplers are constructed of stainless steel with Viton® o-rings,FEP and polypropylene check balls.

Tubing most commonly used is low density polyethylene (LDPE), however, FEP or FEP-lined polyethylene tubing is also available. Depth markers may be ordered for the tubing in either feet or meters, as an optional extra.

Solinst Dataloggers - Levelogger Model 3001 Junior
Solinst Dataloggers - Levelogger Model 3001 Junior

The Levelogger® Junior is the newest addition to the Levelogger Family. The Levelogger Junior provides an inexpensive alternative for measuring groundwater and surface water levels. It combines a data logger, temperature sensor, pressure transducer, and 5-year battery, in a small, maintenance free, waterproof stainless steel housing.

The Levelogger Junior features a non-volatile memory, with a capacity of 32,000 sets of temperature and water level data points. Readings are linear at a user-defined interval between 0.5 seconds to 99 hours. Accuracy is 0.1% FS, with a lifetime factory calibration.

If greater accuracy, sampling options, or ranges are required, the Solinst Levelogger Gold has the functionality to suit your application. (For more details, see Model 3001 Data Sheet.)

Compatible with Levelogger Gold software and accessories, the Levelogger Junior is also SDI-12 compatible, can communicate using a Leveloader Gold data transfer unit, and is able to integrate into Solinst Telemetry Systems.


  • Low cost
  • 5 year battery life
  • 32,000 data points
  • Accuracy of 0.1% FS
  • Real Time View
  • Compatible with Levelogger Gold Series software and accessories


  • Pump and slug tests
  • Reservoir and stormwater runoff management
  • Watershed and drainage basin monitoring
  • Stream gauging, lake and wetland monitoring
  • Tank level measurement
  • Monitoring water levels in wells and surface water

Solinst Model 404 WaTerra Pump
Solinst Model 404 WaTerra Pump

The WaTerra Pump is a simple, reliable inertial pump which uses an age-old, proven technology, in an elegant manner uniquely adapted to the needs of modern groundwater monitoring. The pump consists of a riser tube with a one-way valve at the foot and a surface pumping mechanism.

The valve allows water to enter the tubing as it is pushed downwards, and retains the water when the tube is pulled upwards again. The inertia of the water itself provides the force to carry it up to the surface whenever the tube is being pumped up and down. The water travels in a continuous column, with little disturbance, thus retaining volatiles.

Ideal for Dedication

  • Low cost - little more than a bailer
  • Reduces field time
  • Fast, easy operation
  • Avoids cross-well contamination
  • Avoids costly field blanks
  • Eliminates repeated pump decontamination

Solinst Dataloggers - Rainlogger Model 3002
Solinst Dataloggers - Rainlogger Model 3002

The Rainlogger is a data logger designed to count the tips of a standard tipping-bucket rain gauge with a reed switch output. Compact and waterproof, this durable field unit offers long-term reliability with a battery that lasts up to 10 years.

The rainfall level per user-defined sampling period, and a fiveminute maximum rainfall are logged in non-volatile memory, which holds up to 40,000 sets of readings. Linear sampling can be set from 5 minutes to 99 hours.


  • Add rainfall data to your Levelogger network
  • Compatible with Solinst Telemetry Systems
  • Memory up to 40,000 time stamped readings
  • 10 year battery
  • Waterproof, low maintenance design
  • Designed to be used with most tipping buckets


  • Measuring local precipitation
  • Determining peak rainfall events
  • Stormwater management
  • Remote monitoring of watersheds
  • Ideal for correlating precipitation events to:
    • Groundwater and surface water data
    • Watershed and drainage basin studies
    • Agricultural and forestry studies

Solinst Model 102 Water Level Meter
Solinst Model 102 Water Level Meter

The Solinst Model 102 Water Level Meter has been designed for measuring groundwater levels, especially in small diameter tubes and piezometers. The cable has a heavy duty jacket and stainless steel inner conductor for strength.

For situations where highly accurate measurements or speed of reading is more important the Model 101 Flat Tape Water Level Meter is also available.

Operating Principles

The Model 102 Water Level Meter uses a 9V battery and a small diameter probe on narrow coaxial cable.

When the probe enters water the electrical circuit is completed, sending a signal back to the reel where a light and clearly audible buzzer are activated.

The water level is then determined by reading the cable at the top of the borehole, casing or tube and by accounting for the distance from the point of measurement to the nearest marking on the cable.


  • Narrow - 1/4'' (6 mm) probe excellent for use in 3/8'' ID (10 mm) flexible tubing
  • Low Cost - Fewer markings allow a lower cost. For closer markings see Model 101.
  • Long Life
    • - Rugged, free-standing reel
    • - Strong, flexible coaxial cable
    • - Replacement probes, cables and parts
  • Optional - Carrying bag with shoulder strap

Solinst Model 107 TLC Meter
Solinst Model 107 TLC Meter

The TLC Meter is ideal for profiling conductivity and temperature in wells and open water. It displays accurate measurements of conductivity and temperature on a convenient LCD display that rotates for ease of reading.

Water level and probe depth measurements are read off the accurate Solinst flat-tape marked every 1/100 ft or each millimeter.

Conductivity Made Easy
  • Accuracy is to the greater of 30

Solinst Model 408 Double Valve Pump (DVP)
Solinst Model 408 Double Valve Pump (DVP)

The Solinst Double Valve Pump (DVP) is a pneumatic drive pump that allows consistent, high quality samples. It has been field proven in hundreds of applications.

It offers excellent performance and reliability; no bladder replacement and higher pumping rates than with the Bladder Pump; a selection of sizes and materials; variable flow rates; and is field serviceable.

The Double Valve Pump is suitable for low flow or regular flow sampling, and can operate to depths of 500 ft. (150 m). The PVC Double Valve Pump operates up to 100 ft. (30 m) below grade.


  • Easy Decontamination: everything easily accessible; replaceable and with interchangeable parts. All components can be cleaned with mild detergent or non-phosphate soap.
  • Portable Models: - can be made for any size or depth of application. No tools required for field decontamination. - cart or reel mounted. See overleaf.
  • Converts to a Bladder Pump: - very easily converts to a Bladder Pump, as most of the parts are the same and bladders are simple to install. (See data Model 407.)
  • High Flow Rates: - when large purge volumes are required, Solinst DVP can deliver high flow rates. Flow rates vary with depth of pump below surface, depth below water level, size of drive and sample tubing, drive and vent cycle times, gas pressure applied, aquifer recharge, and size of pump body. The DVP compares favourably with published data for similar sized pumps under similar conditions, i.e.:
    1.66'' x 2ft. 42 mm x 610 mm) DVP at 100 psi, with
    1/2'' OD drive and sample lines, at 150 ft. (50 m) below water level, gives 3.3 l/min.

Solinst Model 408M Micro Double Valve Pump
Solinst Model 408M Micro Double Valve Pump

The Micro Double Valve Pump (Micro DVP) has a remarkably small and flexible design. It is a pneumatic pump similar to a Bladder Pump, but using coaxial FEP® tubing, rather than a FEP bladder to give high quality samples. It is small enough to fit in 1/2'' (13 mm) tubing and all channels of the Solinst Model 403 CMT Systems, as its diameter is only 3/8'' (10 mm). The unique combination of flexibility and size make the pump easy to transport and install in a variety of applications.

The Micro DVP is ideal for low flow sampling and narrow down-hole applications. Flow rates of 20 to 150 ml/min, are obtained, with very small associated purge volumes from within the narrow applications. The Micro DVP is durable and easy to operate using the pre-sets and fine tubing capabilities built into the Solinst Model 466 Electronic Control Unit.


    Groundwater sampling in:
  • CMT and Waterloo Multilevel Systems
  • Direct-Push/Drive-Points
  • Low flow monitoring in narrow diameters


  • Only 3/8'' (10 mm) in diameter
  • Flexible FEP, goes almost anywhere
  • Inexpensive and readily dedicated
  • Narrow applications

Solinst DataGrabber (for use with Model 3001/3002)
Solinst DataGrabber (for use with Model 3001/3002)

The Model 3001 DataGrabber for Leveloggers provides an inexpensive, and very portable option for Levelogger users to download data directly to a USB flash drive key.

How the DataGrabber Works

The DataGrabber connects to a Levelogger’s Direct Read Cable; alternatively, a Direct Read to Optical Adaptor allows you to connect it directly to a Levelogger’s optical end. The USB flash drive key is plugged into the socket on the front of the DataGrabber.  A push-button on the DataGrabber starts the downloading process. All of the data in the Levelogger’s memory is transferred to the USB device. The DataGrabber comes with a 512 Mb USB flash drive key; it is also compatible with most other USB flash drives. The Levelogger is not interrupted if it is still logging.  The data in the Levelogger memory is not erased. A light changes colour to indicate when the DataGrabber is properly connected, when the data transfer is taking place, and when the data has been successfully downloaded. The DataGrabber uses one 9 volt alkaline or lithium battery that is easy to replace when required.

Solinst Levelogger App for Android and IOS (for use with Model 3001/3002)
Solinst Levelogger App for Android and IOS (for use with Model 3001/3002)

Solinst Levelogger App for Android™

The Solinst Levelogger App is designed to communicate with Solinst dataloggers via the Bluetooth® enabled Levelogger App Interface. The app is available as a free download on Google Play™ for your smart device running Android 4.4, or later.

To connect dataloggers to the app, use the Levelogger App Interface; a simple portable hardware connection to the top of your datalogger’s Direct Read Cable or Direct Read to Optical Adaptor. Your Android smart device pairs with the Levelogger App Interface using short-range Bluetooth wireless technology, allowing communication with your datalogger. 

Increased Productivity and Efficiency

The Solinst Levelogger App is well organized and very intuitive, making it easy to use. The app provides all major programming options available with the Solinst Levelogger PC Software, but without the need to bring a laptop to the field. Settings include very convenient scheduled sampling and future start options.  With a datalogger connected, the Solinst Levelogger App will provide information about the datalogger’s status, battery level, serial number, and location. You can save up to 10 program settings that can be applied to Leveloggers. This can help keep Levelogger sampling regimes consistent across a project. The app allows you to check real-time readings from the connected datalogger, as well as view logged readings in a graph or database format. The data can be downloaded to your smart device, or shared immediately via e-mail. Data files can also be exported later to your office computer, and compensated using the Data Wizard in the Levelogger PC Software.

Levelogger App Interface

The App Interface for the Levelogger Series uses Bluetooth® wireless technology to connect a Solinst datalogger to your Android™ smartphone or tablet. Once connected, you can program the datalogger, or view and download data using the Solinst Levelogger App.

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.