1- and 2-level radio repeater. Standby loss only 0.7 watts. For built-in installation. 45mm long, 45mm wide, 18mm deep. Supply voltage 230V. 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 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 thus 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.