Water Quality & Instrumentation - On Sale Now! Save up to 6%
On Sale! Up to 6% off on Water Quality & Instrumentation at In The National Interest. Top brands include YSI, Oakton, Myron L, & Thermo Scientific Orion. Hurry! Limited time offers. Offers valid only while supplies last.
YSI 6050020 Pro20 Dissolved Oxygen Meter, waterproof
You Save: 2%
The ysi professional Series provides plug-and-play capabilities to give you a meter with as much functionality as needed. Build your own system by ordering the meter, probes), and cables) you need without having to purchase additional meters or unnec...
Oakton pH 700 Benchtop Meter with Probes and Stand
You Save: 3%
4.2 out of 5 stars with 23 reviews
The easy-to-use, microprocessor-based pH 700 Bench top meter measures pH, mV, relative mV, and temperature. The large, dual-display LCD provides excellent visibility-even from a distance. Automatic temperature compensation (ATC) maintains reading acc...
Oakton PC700 PC 700 Benchtop Meter with Electrode Stand
You Save: 6%
4.1 out of 5 stars with 60 reviews
The PC700 meter offers a new compact design that is over 40 percent smaller than other benchtop meters. The large display is easy to read even at a distance. Dual-display allows you to read both a measured parameter and temperature at a glance. The m...
Myron L 4PII Conductivity, Resistivity, TDS, Temperature Meter
Both Ultrameter II models deliver exceptional accuracy of ±1% of reading (not merely full scale). This high level of accuracy is achieved through advanced four-electrode conductivity cell technology, a powerful microprocessor, proprietary circuit de...
YSI Pro20 Lab/Field Dissolved Oxygen/Temperature Meter, 0 to 50 mg/L, 0.1 mg/L, 0 to 20 mg/L, -5 to 55 degree C, 8-1/2" Length x 3-1/4" Width x 2-13/64" Depth
You Save: 5%
4.0 out of 5 stars with 60 reviews
The YSI Pro20 instrument is a handheld dissolved oxygen (DO) and temperature meter with graphical backlit display, glow-in-the-dark keypad, rubber over-mold case, military standard connectors, and One Touch Cal feature that calibrates the meter withi...
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