1. Infrared sensor/electronmagnetic sensor to unlock the lock, press key is not necessary. 2. Automatic close the door and touch to close the door mode are selectable. 3. Hide knob design. 4. Anti-prize keyhole design, safe and practical. 5. Hide external power supply jack, used in emergency situation to unlock the lock. 6. In board are stable and of high quality depend on the industrial class chip. 7. Battery low alarm mode. 8. Anti-prize alarm function. Carton size: 47X40.5X16.5cm ( for lock) G.W.: 8.6KGS N.W.: 7.3KGS Unit Weight: 0.25KG
