The CBCSM1, used in conjunction with the CSM1 current sense module (sold separately), will sense the AC power state of a component and pass a control voltage to another components control input or voltage controlled device. This allows the CSM1 to operate as a general purpose current sensor instead of being used exclusively with an MRC44 or MRC88 controller. The CBCSM1 will provide positive or negative logic on its Pull UP or Pull DOWN terminal connections. Requires CSM1 current sense module and 781RG power supply, both sold separately.