"orange de méthyle"

Accurate. Waterproof. No more switching between meters for your routine measurements with the HI98130 pH and conductivity tester.

Rugged, reliable meters designed for educational outdoor experiments.

Rugged, reliable meters designed for educational outdoor experiments.

Precision instruments made for repetitive use in student field investigations.

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

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.

This multiparametrer tester is an easy-to-use and accurate waterproof pH, conductivity, TDS (ppm) tester. It measures pH, EC in the low range (0 to 3999 µS/cm), TDS (0 to 2000 ppm), and temperature. This floating, waterproof combination pocket tester has an easy to read, LCD and an automatic shut-off.

This pH tester is ideal for wastewater, water quality and environmental applications. Compact, water resistant (IP67) instrument fits into the palm of your hand.

Lightweight, Versatile Unit

Designed for direct measurement.

Milwaukee® Waterproof 4-in-1 EC/TDS/NaCL/Temp Meter

Versatile and portable meters for wherever your lessons take you.

Simple read out.

This palm-sized pH meter with cabled electrode can measure pH, voltage potential difference (mV) and temperature.

Rugged, reliable meters designed for educational outdoor experiments.

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