The RNM-10 wireless transmitter module is intended for mounting in electrical distribution boards on the TH-35 rail in order to use switches deployed in the building. The 4-channel transmitter cooperates with wireless EXTA FREE system receivers/actuators. The device has 4 independent inputs controlled by applying 230 VAC voltage. The inputs can be connected to installation switches, wired home automation devices or other relay devices (time programmers, motion sensors, programmable relays, etc).