Controls lamps & appliances within your home Reacts to movement Domia X10 compatible Automatically controls Domia lamp switches & appliance switches Time adjustable OFF command Battery backup The Domia motion sensor is a Domia X10 compatible device capable of transmitting wireless RF signals to the Domia RF receiver available separately. The unit has a built-in photocell with two functions enabling activation during the hours of darkness or as a lightdark sensor. It can be placed in your home without the need for any additional wiring as the unit is powered using 2 X AAA batteries supplied.