"water bath"

Rugged, reliable meters designed for educational outdoor experiments.

Multi-parameter meters engineered for student use in real world testing environments.

Sleek, versatile pH and ORP meter designed for laboratory, classroom, or field use.

Versatile digital meter for pH, conductivity, and dissolved oxygen measurement in one device.

High-precision benchtop pH and ORP meter with advanced data logging and diagnostics.

Keep your DO meter performing like new. Ensure accurate, reliable results for every classroom experiment.

Compact digital pH tester designed for quick and accurate measurement of nutrient solutions in hydroponic and plant science applications.

All-in-one handheld tester for monitoring pH, nutrients, and water quality in hydroponic and agricultural systems.

Portable multi-parameter meter for measuring pH, conductivity, and dissolved solids in agricultural and hydroponic systems.

Measure oxygen concentration and percent saturation

The electronic salt tester measures the Sodium Chloride level in salt water pools with a range from 0 to 9,999 ppm. TDS is measured from 0 to 9,999 ppm and Temperature from 32.0° to 149°F.

This dissolved oxygen meter is a rugged, portable, waterproof dissolved oxygen (DO) meter designed to provide reliable measurements under harsh environmental conditions.

Easily and precisely measure the total dissolved salt content in ocean or brackish water.

Designed to bring simplicity to environmental testing, this pH/EC/TDS Meter is designed specifically for use in manufacturing and environmental testing protocols. The specialized electrode combines 3 sensors in a single rugged probe body featuring a polypropylene body, integrated temperature sensor, and cloth junction.

The double junction electrode is ideal for dirty water, heavy metals, sulfides, tris buffers, and organics. The tester also features a pH and temperature readout toggle, automatic temperature compensation, and a replaceable sensor.

Portable for easy, convenient carrying into the field, this pocket-sized meter features a digital display and is equipped with automatic temperature compensation.

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