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

3 Position Switch: On/off/blinker-uses 2 D Cell Batteries (not Included)

Some failsafe applications may require a 3 or 4 wire cord

SecuraKey 30-mil Wiegand Card (Pack of 100) | SKY-WCCI-10-XXXXXXXX-100

Application: Wall installation for 8MP fisheye

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.