1.Passed CCC,CE UL

2.scope of application:application all type of door.no frame door can choose bracket.all swinging  doors

3.fail-safe operation

4.unlocking mode:power to lock/power to unlock

5.temperature rating:-40c-100c

6.voltage:12v DC

7.different series different sizes

8.accessories optional:access control,power supply,door closer,ect

9.delay function:the time delay is adjustable

11.lock signal output,door monitoring

12.for access control systems with high traffic doors