Pay in 4 interest-free payments of $117.50 Learn more
Ships within 48 hours · Estimated delivery Sep 22 - Sep 27
VPM greater than 31V
Genuine DoorKing OEM replacement keypad
Compatible with both modern and legacy systems
perfect for public and private traffic management
allowing facility managers and contractors to customize automation based on site needs
LiftMaster LM21XP Fire Door Release with Alarm Delay vehicle-detection-systems VPM greater than 31VProgrammable 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
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