"Complete+Meter+Stick+Optics+Bench"

Designed to bring simplicity to environmental testing, this pH/EC/TDS Meter is designed specifically for use in manufacturing and environmental testing protocols. The specialized electrode combines 3 sensors in a single rugged probe body featuring a polypropylene body, integrated temperature sensor, and cloth junction.

Delivers outstanding demonstrations of over 70 phenomena in geometric and physical optics.

Thick Plastic Ideal for Classroom Use.

This tester is an advanced, waterproof conductivity and TDS (ppm) tester for quick and easy measurements while on the go. This lightweight, waterproof conductivity tester offers accurate conductivity (0 to 3999 µs/cm), TDS (0 to 2000 ppm), and temperature measurements in a single, portable, pocket device. No more switching between meters for your routine measurements.

Reads pH, ORP (oxygen reduction potential), mV, conductivity, TDS (total dissolved solids), salinity and temperature.

Whiteboard Color Optics are a complete system for investigating color, reflection, and refraction.

Advanced portable system for dissolved oxygen, pH, and conductivity testing in field conditions.

Reads either pH (in 0.01 resolution) or mV in large digits, with time, date, and temperature (in °C or °F) shown simultaneously on the lower display.

Designed for today's crowded laboratory benchtops!

This set has been designed for simple and clear demonstration of the principles of geometrical optics - transmission, reflection and refraction.

High precision, quantitative atomic spectra experiment.

An all-inclusive solution

A handy addition to your optical bench, this light source features a 7.5 watt incandescent lamp plus a cord and plug for connection to 110 VAC power source.

Easy to read numbers.

These Optical Refraction Components are made from imported optical glass or acrylic with optically worked surfaces.

Full range of AC meters.