Smart Door Handle Interior Exterior Knob Lever with Lock and Key Bedroom Bathroom Black for Home Magnet Aluminium Alloy Room ,More Secure

Chip Type: Dual Core Driver Working power: 4 x AAA 1.5V batteries (not include) Operating temperature: -20 to 55 Centigrade Password function: support virtual password Suit for the door thickness about 35-55mmYou may also like RV Door Handle,RV Toilet Door Lock Bathroom Door Lock RV Caravan Boat Latch Handle Knob Locks For Furniture Hardware ,Simple to Install.