Product Features:1. 100% brand new and high quality2. Secure mode: Locked when power on, still locked when power off, you can open the door with hand.3. Especially suitable for wooden/metal doors.4. Have the lever effect of the lock tongue, but with electronic anti-theft door.5. Electric control, knob, all can unlock keys.6. Static electricity power consumption, long service life, strong security.7. Metal wire drawing processing, lock body surface anti-corrosion, durable and beautiful.8. Suitable for residential buildings, public door, organs, schools, hotel building, factory warehouse and other departments.Technical Information:Working voltage: 12VDC Opening Voltage: 9 to 18VWorking current: 150mAMaterial: MetalDimension: 131mm(L) x 107mm(W) x 39mm(H)Dimension: 5.1"(L) x 4.2"(W) x 1.5"(H)inchPackage includes:1 x Metal Electronic Control Lock 3 x Keys 1 x Door Rim 1 x Installation Package