Radio button, 80x80 mm outside, frame inner dimensions 55x55 mm, 15 mm high. Generates energy for radio telegrams even when the button is pressed, therefore no connection cable and no standby loss. With single and double switch. Smart Home sensor. The delivery includes the frame R, a single switch W55, a double switch DW55 (all in the same color), a mounting frame BRF, the holding plate HP, the radio module, and an adhesive film. A radio button with a single switch can send two evaluable signals, while a radio button with a double switch can send four. The holding plate can be screwed onto a flat surface or adhered to the wall, glass, or furniture using the included adhesive film. Above a 55 mm switch box, the existing sleeves in the box are used for screw mounting. The double switch is factory-mounted on the radio module. If it needs to be replaced with the large switch, pull the switch halves forward without bending them towards the center. Then, snap the large switch on so that its markings 0 and I on the back align with the radio module. When adhering, first attach the set of holding plate with frame and mounting frame - with the snap fittings at the top and bottom - to the surface. Then snap the set of radio module with switch - marking 0 on the back always at the top.