The Schellenberg 25101 door opener key switch is a surface-mount device designed for easy installation. Manufactured by Schellenberg, it provides secure key-based access control. Ideal for residential or commercial use, it enhances security by limiting access to authorised personnel. https://elecena.pl/product/28722130/schellenberg-25101-door-opener-key-switch-splash-proof-break-resistant 2025-05-18 https://elecena.pl/product/28722130/schellenberg-25101-door-opener-key-switch-splash-proof-break-resistant 2026-07-04