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This user-friendly meter has a long battery life and plenty of helpful functions.

Lightweight, Versatile Unit

Simple read out.

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

Since you can refill the ExStik® quickly, you won't need to worry about the shelf life of its electrode.

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

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

Visually demonstrate the conductivity of a solution.

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

The VFM200 measures VOC (Volatile Organic Compound) and formaldehyde concentrations in real-time.

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

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

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

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

Built for durability and ease of maintenance these 4-in-1 testers are well suited for laboratory experiments and outdoor field work.