1 and 2-level radio repeater with small antenna. Stand-by loss only 0.6 Watt. If required, a FA250 radio antenna can be connected. Series installation device for mounting on DIN-EN 60715 TH35 mounting rail. 1 division unit = 18mm wide, 58mm deep. This repeater is only necessary if the structural conditions prevent an undisturbed reception or if the distance between the radio button and the receiver is too large. The antenna FA250 with 250cm cable can be connected instead of the small antenna included in the delivery. Optimally placed, this increases the range considerably. 1-level mode is activated ex works. Only the signals from sensors and actuators are received, tested and transmitted at full transmission power. Radio signals from other repeaters are ignored to reduce the amount of data. In the de-energized state, a rotary switch can be used to switch to 2-level mode. After switching on the supply voltage, the radio signals of another 1-level repeater are now also processed. A signa