1- and 2-level radio repeater with small antenna. Standby loss only 0.6 watts. If required, a FA250 or FAG55E- radio antenna can be connected. Installation in the 230V power supply cable, for example in false ceilings. 100mm long, 50mm wide and 25mm deep. This repeater is only required if the structural conditions prevent uninterrupted reception or the distance between the radio button and receiver is too great. The FA250 antenna with 250cm cable or FAG55E- with 100cm cable can be connected instead of the small antenna included. If optimally positioned, this increases the range considerably. The 1-level mode is set at the factory. Only the radio signals from sensors are received, checked and transmitted with full transmission power. Radio signals from other repeaters are ignored in order to reduce the amount of data. The rotary switch can be used to switch to 2-level mode. Now, in addition to the radio signals from sensors, the radio signals from another 1-level repeater are also processed. A radio signal can be received and amplified a maximum of 2 times. The LED indicates incoming radio signals by flashing briefly. Radio repeaters do not need to be taught in. They receive and amplify the radio signals from all radio sensors in their reception area.