1.Door holder Suitable for security door and all types of 90 degree door.2.Built in computer control board with door open delay function,delay time should be adjustable. 3.built-in demagnetizer design, instant demagnetization when power is off .
1.Door holder Suitable for security door and all types of 90 degree door.2.Built in computer control board with door open delay function,delay time should be adjustable. 3.built-in demagnetizer design, instant demagnetization when power is off .