1. Specially used for video talk-back system, remote control system and etc. Universal for left, right, in-swing and out-swing doors. 
2. Adopting CPU automatic control, is equipped with automatic detection, Noiseless for opening and closing.
3. Can lock automatically when the door is closed
4. Material of latch bolt: zinc alloy;  Length of latch bolt: 20 mm; Lock Size: 130(L) x 105(W)x 41(H) mm;
Temperature tolerance: .-20℃～ +60℃

Working voltage:12～18VDC; Working current: ≤300mA; Static current: ≤50mA
Knob and controller operate from inside; keys and controller operate from outside
Memory capacity: 2000 users cards
Effictive distance for Infrared control: ≤3 m
Effictive distance for remote controller: ≤50 m
Effictive distance for ID card: ≤50 mm