record Wireless Switch – piezoelectric wireless button
The record wireless button is a wireless 868.3 MHz radio-controlled button that can be attached to almost any point up to 30m from the door. Pushing the button transmits a radio signal with an embedded code to the receiving unit at the door control, triggering an opening impulse. Piezoelectric technology makes the record wireless button maintenance-free, and also means it does not require batteries. Included is also an adhesive film, which enables you to attach the radio-controlled button to glass, tiles or even painted walls.