"pH Meters and Supplies"
Hanna Instruments Spare pH Sensor for Hanna Testers
This spare pH sensor makes electrode replacement quick and easy. The spare pH sensor is designed as an easy-fit cartridge that locks into place, featuring two o-rings to maintain a watertight seal. With no pins to line up or that can break, this sensor is ideal for quick replacements.
Expand 1 item
pH Electrode, PEI Body Field Application
This pH electrode is a plastic body, double junction, gel filled pH electrode with a built-in temperature sensor for temperature compensated measurements in a single probe design.
Expand 1 item
Milwaukee® Basic Waterproof TDS Testers
These durable TDS testers feature a replaceable electrode and are ideal for student use in the classroom and field environments.
Expand 2 item
Oakton® Waterproof pHTestr3+
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.
Expand 1 item
Milwaukee® Economy pH Tester
Compact and easy to use-ideal for students to learn the basics of pH in the classroom.
Expand 1 item
Milwaukee® Pro Portable pH/EC/TDS Meters
Multi-parameter meters engineered for student use in real world testing environments.
Expand 2 item
Milwaukee® Pro Waterproof EC/TDS/Temperature Testers
With a long-lasting design, these 2-in1 testers are a smart choice for student experiments in both the classroom and field applications.
Expand 3 item
HALO2 Wireless General-Use pH Tester
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.
Expand 1 item
pH 10 Buffer Solution
High-quality pH 10 calibration buffer for standardizing meters in basic solutions.

