1-Channel Radio Proximity Sensor with NanoPower Technology in an E-Design. The dimensions are 80x80mm externally, the frame inner dimension is 55x55mm, and the height is 15mm. Thanks to NanoPower technology, the battery has a lifespan of up to 30 years. The proximity sensor transmits radio telegrams like a 1-channel radio switch when a hand approaches or moves away at approximately 10cm. The mounting plate can be screwed over a device box with a screw distance of 60mm or onto a flat surface. With the included adhesive film, the radio proximity sensor can be attached to walls, glass, or furniture.