You can activate and deactivate your alarm system with the key switch. Simply turning a key replaces entering a PIN code. This allows you to operate your system faster and more conveniently. In addition to the arming and disarming function of the alarm system (or individual sub-areas), you can also use the key switch to control electronic devices (entrance lighting, garage door, etc.). There are two switching contacts available here. You can set these as permanent contacts or as impulse contacts. The two colored LEDs always let you know the status of the connected devices. For example, you can see whether your system is currently switched on. The core pull protection rosette, the high-quality cylinder from ABUS and a sturdy weatherproof housing (IP 55) protect the key switch from external influences. The key switch is designed for half cylinders (10/30) - the half cylinder is not included in the scope of delivery. It is available as both a surface-mounted and a flush-mounted version. The surface-mounted version is protected against sabotage with a cover and wall tear-off contact.