This door monitoring signalling unit is suitable to monitor the status of up to 8 doors.
To all connected contacts belong 2 LEDs and a common buzzer.
For the central monitoring of more escape route doors e.g. at gates, monitoring rooms, nurse rooms.

Operating status and alarm signal for every contact, green and red LEDs.
Audible collective alarm via the built-in buzzer.
Key switch to control the buzzer (off/on).

Power consumption, fail-unlocked: ca. 10 mA
Power consumption, alarm: 20 mA