Schlage Electronics GF3000TJ Surface Mounted Shear Lock,3000 lb Hold Force,Top Jamb,

electromagnetic locks provide breadth of application, depth of features and a proven record of performance.

GF3000 Series shear locks feature a patented design, offering advances over any shear lock in the market. A microprocessor-based control module provides advanced electronic features. This circuitry automatically senses and adjusts input voltage, allowing for operation from 12 to 24 volt DC power sources.