"WardsSci000338"

Flat electrode surface allows pH readings in liquid flms, semi-solids, and solids.

This convenient device measures dissolved oxygen concentration, saturation, and temperature - all in one!

Designed for today's crowded laboratory benchtops!

Compact and easy to use-ideal for students to learn the basics of EC in the classroom.

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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These durable EC testers feature a replaceable electrode and are ideal for student use in the classroom and field environments.

Easy to carry, simple to operate and sufficient for most field pH tests.

These durable TDS testers feature a replaceable electrode and are ideal for student use in the classroom and field environments.

Lightweight, Versatile Unit

Store Up to 15 Readings

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

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.

Compact and easy to use-ideal for students to learn the basics of pH in the classroom.

With a long-lasting design, these 2-in1 testers are a smart choice for student experiments in both the classroom and field applications.

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.

Compact and easy to use-ideal for students to learn the basics of TDS in the classroom.