Transcat stocks the decade boxes for your precision measurement applications. Using a series of resistors, capacitors or inductors, a decade box simulates electrical values. Switches are arranged in decades (sections of 10) where values from 0-9 are selected. Configured boxes can be substituted into a circuit as a component to determine the appropriate value for circuit operation. They can also be connected to input devices for testing. After connection to the decade box, a device should display a reading corresponding to the previously set box value. Our wide selection of decade resistance boxes include models that can serve as standards in verifying the accuracy of resistance-measuring devices. We offer a wide variety of boxes built by IET Labs, Prime Technology and AEMC.