Interface sensor specifications state rated output, expressed in millivolts per volt (mV/V), as the electrical output of a load cell, multi-axis sensor, or reaction torque transducer in mV/V of excitation at the rated load. It essentially expresses a load cell's sensitivity. RO represents the change in output voltage in millivolts of the load cell relative to a change in the excitation voltage in volts applied to it.

Interface Signal Conditioners are used with a wide range of load cell and force measurement devices. Transducers convert force or weight into an electrical signal. The output signal of a load cell is typically in the form of a small electrical voltage that is proportional to the applied force. Primary features of signal conditioners include amplification, filtering, isolation, and linearization. As detailed in Signal Conditioners 101, it can perform various functions depending on the specific application and the type of signals.