Water Monitoring | Water Quality Instruments

Hanna 9025

The Hanna 9025 is a microprocessor-based pH meter in a waterproof casing measuring pH, ion concentration and ORP in the mV range. Features Rugged, Waterproof Construction; Dual Level Display with Graphic Symbols; READY function.

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Hanna 9142

Hanna 9142 Dissolved Oxygen Meter features water resistant casing, one point calibration, ATC Circuitry, Low Battery Indicator and simple to use View Product Details/Place an Order »

Hanna 9828

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.

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Hanna 991301

Waterproof portable pH/TDS/ Conductivity/ temperature meter with a single electrode/ probe. Features waterproof, termperature both C and F, TDS Factor adjustable from .45 to .75, ATC Standard, two button operation, pH calibration to NIST or standard, Beta Adjustable from 1.8 % to 2.4; shows battery level at startup, single rugged probe and comes in a hard case.

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Horiba U-10

Horiba's U-10 water quality checker is a model of efficiency, accurately and automatically measuring pH, temperature, dissolved oxygen, electrolytic conductivity, turbidity and salinity. View Product Details/Place an Order »

Orion 250A

The Model 250A plus is a multi-purpose, pH meter for one-handed field operation, featuring build-in electrode storage sleeve with cable management. Features 3 Point pH Manual and autocalibration; new EH ORP mode correlates measurements to Standard Hydrogen Electrode (SHE) and RS232 Communciation and Datalogging Capability.

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YSI 30

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. View Product Details/Place an Order »

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. View Product Details/Place an Order »

YSI 550A DO Meter

Looking for a rugged, field-worthy instrument for measuring dissolved oxygen? The new YSI 550A DO features a waterproof IP-67, impact-resistant case and innovative field-replaceable DO electrode modules. Measure dissolved oxygen and temperature simultaneously using YSI's proven polarographic technology for oxygen and YSI Temperature Precision TM thermistors, the worldwide standard for accuracy. View Product Details/Place an Order »

YSI 556 MPS

Rugged,reliable and waterproof, the YSI 556 MPS (Multiprobe System) combines the versatility of an easy-to-use, easy-to-read handheld unit with all the functionality of a multiparameter system.

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YSI 60

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. View Product Details/Place an Order »

YSI 63

Finally - a pH instrument- plus more - designed for field use! The handheld YSI 63 measures pH, conductivity, salinity and temperature with a single probe to depths up to 100 feet! View Product Details/Place an Order »

YSI 85 DO Meter

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. The YSI 85D is also available with a detachable cable. View Product Details/Place an Order »

Hanna HI 9125N

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.

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Hanna HI 991301N

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.

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