Wireless doorbell button 80x40x15mm, matt anthracite with energy generator. Protection class IP54. Generates the energy for radio telegrams even when the button is pressed, therefore no connection cable and no standby loss. Labeling field 43x12mm. E.g. for Dymo label tape 9mm and 12mm. The wireless doorbell push sends 1 evaluable signal like a 1-channel wireless button.