Features:* Fit both Left and Right hand door (by rotating the lock 180 Degree). Support manual unlocking, 3 keys included.* Unit has two wires running from it for electronic access. High anti-theft and high safety.* NO (open when powered) Fail Secure Operating Mode. With electronic-control unlocking unit and a spring adjusting balance unit.* Super quality iron, surface dusting technology, durable. User friendly, and easy to install.* Suitable for all sorts of access control systems and Video door systems. Suitable for home, offices, schools, hotels, factories, warehouses, etc.Specifications:Voltage: DV 9 ~ 12VCurrent: 1.5A ~ 3APower: > 12WOperating Mode: NO (open when powered)Work temperature: -40 Celsius~50 CelsiusPackage Size: 18 * 11 * 8cm / 7.1 * 4.3 * 3.1inPacakage Weight:1237g /43.6ozPackage List:1 * Electric lock1 * Key cylinder3 * Keys1 * Installation Accessories (screws)