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Genuine DoorKing OEM replacement keypad
Heavy-Duty Weld-On Hinges for Swing Gates up to 2
VPM greater than 31V
Recommended Hardware: Four 3/8" x 3" sleeve anchors (not included)
LiftMaster LM21XP Fire Door Release with Alarm Delay vehicle-detection-systems Genuine DoorKing OEM replacement keypadProgrammable Fire Door Release for Rolling and Sliding Systems The LiftMaster LM21XP is a UL listed fire rated door release device designed for use with rolling steel, sliding, and center parting doors. Engineered to respond to fire alarms or fusible link activation, it enables controlled release of fire doors in emergencies while supporting compliance with NFPA 72 and 80. The unit features a normally energized fail safe design, programmable delay on
