Flush-mounted transmitter controlled by up to four external buttons. Since this unit can transmit at intervals, it is suitable for transmission of longlasting switching states (such as those from motion detectors, time switches, thermostats, etc.).
For this operating mode, a correspondingly long hold time can be adjusted in the related radio-controlled switches.
The 9V DC version is supplied complete with a battery clip for direct connection to a 9V block battery.