Wireless window door contact with energy generator 48 x 32 x 11.5 mm, pure white. Also for monitoring drawers and other moving equipment. Generates the energy for radio telegrams even at lever pressure, therefore without battery, without connection cable and no standby loss. Attachment by sticking, screwing or with mounting brackets BW3. Smart home sensor. When closing and opening, a radio message frame (like a Hoppe window handle window closed or window fully open) is sent. A mounting bracket BW and 2 adhesive films are included in the delivery. The 27mm short lever can be extended to 48mm by attaching the enclosed part. If FTKE window door contacts are taught in in switching actuators FSR14, links of up to 116 FTKE are possible. Please observe the operating instructions of the actuator for this purpose. If window door contacts FTKE are taught in in switching actuators FSB12/14, FSB61NP or FSB70, a lock-out protection is set up when the door is open, which blocks a central shut-off co