Features: The product can be opened by electrically controlled devices, manually turning the button or keys. It is highly secured and anti-theft. The lock has plastic coil which can prevent from burning out under normal power-on conditions. The internal structure of the lock has been further improved to effectively avoid knocking to unlock inside the door. The lock is special in design with rugged and durable stainless steel material, featuring in low operational and standby current. The lock is suitable for residential buildings, offices, schools, hotels, factories, warehouses, etc., and can be used with electronically controlled anti-theft security door. Specification:Condition: Brand NewCase material: 304# stainless steelColor: Shown as pictureInstallation direction: Left positive directionPower: DC 12VCurrent: 1.5-3AUnlock type: power on unlock, power off lockTemperature: -40 ° C ~ + 50 ° CUnlock time: 1SDurability test: 300,000 cyclesSize: Shown as pictureScope of application: Suitable for residential buildings, offices, schools, factories, warehouses, etc., and can be used with electronically controlled anti-theft security door.Package List:1 * Lock Body1 * Lock Box1 * Lock Head1 * Screw Bag5 * Mechanical Keys1 * User ManualNote:1. Electric control lock must not be welded.2. The electric control lock is unlocked for a momentary power supply. When the power supply time exceeds 3S, the coil is easily burned out.3. After power off, the electric lock can be used as a common mechanical door lock (key unlock).