LiftMaster Sprocket Kit (1.25" Bore, 1/4" Key) | LIF-71-1550B22QGH Doorking Octagonal Arm Edges and Bumper Adaptive Sensing - High-resolution detection

Adaptive Sensing - High-resolution detection curtains create a reliable solution with the ability to self-adapt as the door opens

They sport an individual eyepiece focusing system and attached objective lens covers

electronic gadgets

Locking System: Turn Key

Some failsafe applications may require a 3 or 4 wire cord

LiftMaster Sprocket Kit (1.25" Bore, 1/4" Key) | LIF-71-1550B22QGH Doorking Octagonal Arm Edges and Bumper Adaptive Sensing - High-resolution detectionLiftMaster Sprocket Kit (1. 25" Bore, 1 4" Key) LIF 71 1550B22QGH SPROCKET KIT, 22 TOOTH, 1. 25"BX1 4" K. Recommended for 1200 Operators for Sectional Doors.