Electromagnetic Lock, Surface Mount, Opening Action Electromagnetic, Aluminum, Amp Draw @ 12V 0.42, Amp Draw @ 24V 0.21, Input Voltage 12/24V AC/DC, Features Surface Mounted for Outswing or Inswing Single or Double Doors, Total Projection (In.) 1 1/2 in, Holding Force (Lb.) 1,500, Lock Body Length (In.) 11 in, Lock Body Width (In.) 2 3/4 in, Lock Body Depth (In.) 1 1/2 in, Mfr. Series 3000, Instantaneous Release Delay, Brushed Aluminum Finish, Standards CSFM, cULus Listed, NYC MEA #23-92-E