1. Specially used for Video talk-back system, remote control system and etc.
2. Apply advanced mechanic design and with adjustable locking pressure and changeable dead bolt that has anti-theft function
3. Material of latch bolt: brass;  Length of latch bolt: 13 mm; Lock Size: 130(L) x 105(W)x 41(H) mm

Working voltage:9～15VDC/AC; Working current: 1.3A(1 second);
Knob and keys operate from inside; keys operate from outside
Certificate: CE RoHS