The Extech 380400 Resistance Decade Box is very popular for product design testing and calibration because it can be easily inserted into a circuit and function in place of any component with a standard value. Alternatively, it can be used to determine the optimal value for the circuit to operate and then read that value from the switches. A resistor of the size indicated by the Decade Box switches can then be inserted into the circuit.
About the Manufacturer
EXTECH
Extech Instruments is a leading global manufacturer of innovative handheld test, measurement and inspection tools. Since 1971, the company has provided reliable solutions for professionals, craftsmen and do-it-yourselfers in various fields such as electrical, mechanical, maintenance, safety and environmental. Extech is known for its high quality and is valued in over 100 countries. Since 2007, Extech has been part of Teledyne FLIR, a leading provider of infrared thermal imaging solutions.