Visionis VIS-EL102-FSA 2,200lbs Electric Door Strike for Wood and Metal Doors 12v Fail Secure, Normally Open Lock Size: 123Lx43Wx42H (mm) 4.84Lx1.69Wx1.65H (in.) Fail Safe: Unlocks if power is lost Strike Structure: Stainless Steel Holding Force: 1000kg (2200 pounds) Voltage: DC12V Current: 320mA Signal Output: Lock Status Output NO/NC/COM Suitable For: Wooden Door, Metal Door, PVC Door Surface Temperature: Within +20C (+68F) Suitable Temperature: -10 +55C (14-131F) Operating Humidity: 090% (non-condensing) Face plate Housing: Painted Steel Lock tongue: Surface by coating nickel Function: Built-out MOV Weight: 0.34kg (0.75 pounds)