Double Maglock, Surface Mount, Opening Action Instant Release, Aluminum, Amp Draw @ 12V 400mA, Amp Draw @ 24V 200mA, Input Voltage 12/24V DC, Projection from Wall (In.) 1 1/2 in, Features Bond Sensor and Door Status Sensor Signal Powered, Securely Locked Door, Total Projection (In.) 2 in, Holding Force (Lb.) 1,200, Armature Length (In.) 7 1/2 in, Armature Width (In.) 2 7/8 in, Armature Depth (In.) 1 1/2 in, Lock Body Length (In.) 21 in, Lock Body Width (In.) 2 7/8 in