The DF-V1/DF-H1 is a Standalone Keypad single-door controller with metal case.
It’s rugged IP65 rated Waterproof structure offers extra durability and makes it
perfect for outdoor installation. The value-added Auxiliary Input interface allows DF-V1/DF-H1 to link with an external source, for instance a smoke or gas detector etc., or an emergency switch. Once the linkage is triggered, the device would automatically generate an alarm signal and open the door in cases of emergency situations.