Access controller expansion board: It is used with the access controller board. Mainly to play the fire linkage, alarm, and other functions. Commonly used is the input terminal of the smoke sensor, and the output is connected to the alarm. In the event of a fire, the smoke sensor inputs a level signal that triggers an alarm to sound.
- Access Control Accessories
- Access Control System
- Eletric Magnetic,Dropbolt Door Locks For Glass Doors,Gates