Electromagnetic Lock, Surface Mount, Opening Action Electromagnetic, Steel, Amp Draw @ 12V 1.34A/12V DC, Amp Draw @ 24V 700mA/24V DC, Input Voltage 12/24V DC, Projection from Wall (In.) 1 9/16 in, Total Projection (In.) 1 9/16 in, Holding Force (Lb.) 1,650, Armature Length (In.) 7 3/8 in, Armature Width (In.) 2 3/8 in, Armature Depth (In.) 1/2 in, Lock Body Length (In.) 22 1/9 in, Lock Body Width (In.) 2 3/4 in, Lock Body Depth (In.) 1 9/16 in, Strike Plate Length (In.) 7 3/8 in