Door Opener de Luxe
An electrical door opener can be controlled by an electronic code lock or a transponder. However, this always requires running a cable, installing a keyboard (tamper-proof) or fitting a concealed coil. All of this can be avoided by using a radio remote control of the type used for cars. The receiver can be fitted directly to the electrical door opener. Various types of aftermarket sets for controlling a centralised locking system are available in accessories shops. They cost around 50 (£ 30), including a handheld transmitter.