The bidirectional flush-mounted receiver RCJ31 is used for switching mains voltage consumers with potential. It can learn up to 32 transmitters. Additionally, there is a button input available for wired operation. Programming is easily done on the device via button press or wirelessly using the POTA remote learning feature. Besides the on/off function, the operating modes logic, dead man's switch, and timer can be set in a range from seconds to 30 hours.