This item is made of highest quality materials and special technology in processing the electromagnetic parts which is durable and easy to use. It is suitable for office building, stainless steel doors, steel doors, wooden doors, fireproof exit doors, main access doors of community. So, why not have a look Features:Suitable for office building, stainless steel doors, steel doors, wooden doors, fireproof exit doors, main access doors of community.Mortise mounted, beautiful outlook, large lock striker, and wide range of application.Embedded installation,made of highest quality materials and special technology in processing the electromagnetic parts.Can customize special lock according to your demand.Without residual magnetism for long time working, ensure durable operation.The lock time is determined by the power-on time.Easy to install.Durable and easy to use.Double unlock mode: switch up, power off or NC, switch down, power on or NOHigh strength and high hardness.,made of thick stainless steel with built-in copper coils.Special design,easy to adjust the distance of the Lock-tongue.Specification: Item Type: Electric Strike Door Lock Material: PlasticColor: SilverLock Size: 11 x 2.5 x 3cm or 4.33 x 0.98 x 1.18inch Lock-tongue Structure: Zinc alloy die casting Holding Strength: 300kg thrustVoltage: DC12VCurrent: 12V or 280mA 24V or 160mASpecial design: Adjustable Lock-tongueSuitable For: Wooden door, Metal doorSurface Temperature: Lower than room temperature and20Suitable Temperature: -10-and55C(14-131F)Suitable Humidity: 0-95 percent Lock body treatment: High temperatureSecurity Type:power off to lockPackage Weight: 233g or 8.21ozPackage List:1 x Cathode Lock2 x Screws1 x Resistor.