"Complete+Meter+Stick+Optics+Bench"

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

Design to serve dual purpose as volt meter and ammeter.

Milwaukee® Waterproof 4-in-1 EC/TDS/NaCL/Temp Meter

Great optical bench accessory.

Slim, versatile meter for accurate EC, TDS, and salinity readings in classrooms or labs.

Rugged, reliable meters designed for educational outdoor experiments.

This is an excellent and economical set for introductory ray optics.

Simple read out.

Compact design for fast, convenient electrochemistry measurement at your fingertips.

The Optical Voice Link Kit is the ideal introduction for those students first learning about the marvels, mysteries and science of light transmission through optical fiber.
Students will be fascinated by hearing their own voices, after it has been converted into light and then coupled into, through and out of an optical fiber. This kit is suitable for science projects, home projects, short audio fiber optic curriculums for schools, and inexpensive classroom demonstrations.
No prior fiber optics experience, special tools or training are needed for students to be able to build, use and enjoy the multiple applications of this kit.

Double-sided metric meter stick features hardwood construction, horizontal reading, and protective metal ends. Ideal for general-purpose use in classrooms and workshops.

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

Measures Both English and Metric Scales.

This single-sided hardwood meter stick with vertical reading and a zero top is ideal for classroom or lab experiments requiring precise measurements.

The handheld LCR meters measure inductance, capacitance, and resistance quickly and precisely.

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.