1- and 2-level radio repeater. Standby loss only 0.7 watts. For flush mounting. 49x51mm, 20mm deep. The connection terminals are plug-in terminals for conductor cross-sections from 0.2mm² to 2.5mm². 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. If the supply voltage is only connected to terminals L and N, 1-level mode is active. Only the radio signals from sensors are then received, checked and transmitted with full transmission power. Radio signals from other repeaters are ignored in order to reduce the amount of data. If the phase is connected to the level 2 terminal in addition to the supply voltage, 2-level mode is active. Now, in addition to the radio signals from sensors, the radio signals from 1-level repeaters are also processed. A radio signal can be received and amplified a maximum of twice. Radio repeaters do not need to be programmed. They receive and amplify the radio signals from all radio sensors in their reception area.