"AP PHYSICS LAB 9 STATIC EQUILIBRIUM."

Rugged, reliable meters designed for educational outdoor experiments.

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

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 pH across a range of food products with wireless testers designed for milk, cheese, and meat analysis in food science and agricultural studies.

Versatile and portable meters for wherever your lessons take you.

Sleek, multipurpose pH meter with smart electrode recognition and easy calibration.

Slim, versatile meter for accurate EC, TDS, and salinity readings in classrooms or labs.

Simple to use benchtop meter for easily measuring pH and ORP.

Simple-to-use benchtop meter designed to easily measure conductivity, TDS and salinity.

Functional and accurate, this meter is capable of testing 12 different water quality parameters using pH, EC, and optical DO sensors. Transfer data to a smart device for review or sharing with the integrated Bluetooth connection and Hanna Lab App.

The Free and Total Chlorine Photometer combines accuracy and ease of use in a simple, portable design. The advanced optical system provides lab-quality accuracy while its user-friendly design is easy for any user making it the perfect photometer for your water quality testing needs. This meter measures free and total chlorine in water samples from 0.00 - 5.00 mg/L (ppm).

The Total Hardness Photometer combines accuracy and ease of use in a simple, portable design. The advanced optical system provides lab-quality accuracy while its user-friendly design is easy for any user making it the perfect photometer for your water quality testing needs. The HI97735 meter measures total hardness in water samples up to 750 mg/L (ppm) CaCO₃.

The HALO2 Wireless General Use pH Tester has a refillable glass body and spherical glass sensing bulb made for users that prefer a low-maintenance laboratory-grade pH electrode.