Module
WBT-912
DC Wall Switch Module For Rocker Wall Switch. Unique 2 channel wall switch module transforms the original wall switch to wireless control. DC type, dry contact without any 230V wiring. Especially designed to fit into standard wall box.
Compatible to L and M series 2 Channel On / Off / Dimmer control. Dry Contact. Fits into standard wall box.
Battery: 3V CR2032 Lithium Cell Battery (included) Radio Frequency: 433.92MHz Environment Temperature: 0-40 ºC Range: Up to 50 Meter range (Depends on building materials)