DHJ Door Lock Hoist/Jackshaft Operator
LiftMaster Opener
Ideal for shopping mall applications with heavier rolling doors and grilles. The operators provide a floor level chain hoist to ease manual operation and include a door lock sensor to prevent damage. Features: Continuous-duty high-starting torque motor, monitor and control the operator with an app, secure-with every click a new code is sent to the operator, floor level disconnect to allow manual lifting in an emergency, Timer-to-Close and internal door lock sensor that eliminates damage to the door and operator if the door is opened when locked.
