Resistance Box is an electrical instrument used for precise measurement and calibration of resistance values. It consists of a box like enclosure that contains multiple resistors with known values that can be selectively connected for creating desired resistance values. The resistors are arranged in a series of rotary switches or dials allowing for easy adjustment and selection. Resistance Box provides a convenient and accurate means of calibrating electrical circuits, verifying resistance values, and testing equipment. It is used in research facilities, laboratories, and electronics industries for resistance measurement and calibration applications. Our quality controllers test this on different parameters before the final dispatching.