"Complete+Meter+Stick+Optics+Bench"

This kit is very useful for reflection, refraction, and color mixing experiments.

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

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.

Lets You Control Location and Depth of Measurements

Highly stable and accurate readings with large LCD display. Designed for simple one-hand operation.

This ray box is ideal for optical demonstrations in the classroom.

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.

A versatile and dependable bench-top digital multimeters suitable for applications.

This kit uses a compact yet powerful laser ray box, which has bright and well-defined rays perfect for classroom use.

Comprehensive, field-ready system for testing multiple water quality parameters with precision.

Find the concentration of a liquid using the samples of known concentration using the Beer-Lambert law.

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

Right angle and equilateral prisms are available in a variety of forms.

Dual purpose for Dual Benefits

Complete demonstration for colors and LED properties.