Simple arming/disarming of the alarm system without PIN code. The key switch is used to activate and deactivate the alarm system. Simply turning the key replaces the need to enter a PIN code, which makes operation more convenient and faster. Two extra switching contacts and coloured status LEDs In addition to the arming and disarming function of the alarm system (or individual sections), the key switch can also be used to control electronic devices (entrance lighting, garage door, etc.). Two switching contacts are available here, which can be set as a permanent contact or as a pulse contact. Two coloured LEDs provide information on the current status of the connected devices and whether the system is currently armed or disarmed. Solid sabotage and weather protection. The high-quality cylinder included in the scope of delivery, the core pull protection rosette and a sturdy weatherproof housing (IP 55) protect the key switch from external influences. The key switch is designed for half cylinders (10/30). Simple surface mounting and sabotage protection The surface-mounted key switch is simply mounted on the outside of the wall. It is protected against sabotage with a cover and wall break contact.