Signal to close the door :，
Temperature higher than 68 degree;
Control center; .
Emergency manual button
Signal output:
door open/door close Handed
Material:
Body: die-casting aluminum alloy
Arm: casting steel
Cover: stainless steel
Max door weight 45-1 50KG
Operating current: 80mA
Operating volt: DC 24V
Application: fire system
Delay time: 2-5s
