Description: This item adopts high-quality iron, Iron wire drawing process, lock body surface anti-corrosion, which is durable and beautiful. It can be used compatible with the signals of all building intercom system and access control system. And it is suitable for residential buildings, public door, organs, schools, hotel building, factory warehouse and other departments. What are you waiting for?Features: Suitable for residential buildings, public door, organs, schools, hotel building, factory warehouse and other departments. High-quality iron, Iron wire drawing process, lock body surface anti-corrosion, durable and beautiful. It can be used compatible with the signals of all building intercom system and access control system. Low power consumption, long service life, strong security. High anti-theft and high safety. Unit has two wires running from it for electronic access. With electronic-control unlocking unit and a spring adjusting balance unit. Easy to install. Support manual unlocking, 3 keys included.Specification: Item Type: Electronic Door Lock Material: Metal Color: As picture shows Item Size: 15.5 * 10.5 * 4cm/6.1 * 4.13 * 1.57inch Package Weight: 1204g/42.46oz unlock time: ? 1S Static: 25Ma Working voltage: DC12V- l 8V Unlock current: <350mAPackage List: 1 * Electric lock 1 * Forend cap 3 * Keys 1 * Installation Accessories (screws) 1 * Installation Instructions