Pay in 4 interest-free payments of $117.50 Learn more
Ships within 48 hours · Estimated delivery Aug 1 - Aug 6
Compatible with both modern and legacy systems
VPM greater than 31V
Genuine DoorKing OEM replacement keypad
Compatibility: Elite SL3000 1/2HP slide gate operators
Recommended Hardware: Four 3/8" x 3" sleeve anchors (not included)
LiftMaster LM21XP Fire Door Release with Alarm Delay vehicle-detection-systems Compatible with both modern andProgrammable Fire Door Release for Rolling and Sliding Systems The LiftMaster LM21XP is a UL listed fire rated door release device designed for use with rolling steel, sliding, and center parting doors. Engineered to respond to fire alarms or fusible link activation, it enables controlled release of fire doors in emergencies while supporting compliance with NFPA 72 and 80. The unit features a normally energized fail safe design, programmable delay on
US$ 88.00
US$ 925.00
