LiftMaster Sprocket, 50B18T, 1-1/2"B x 3/8" | LIF-15-50B18TKK Wireless Intercom Systems Circular frame illumination in red

Circular frame illumination in red and green with separate activation for entry and exit flank

and cotter pin

Hereby is an overview of the different types of Boosters:

this 20-foot Varioboom arm includes integrated red and green LED strips to clearly signal barrier status—red when closed

D&D Technologies LL3ABRND LokkLatch Series 3 Round Post Latch with EAB | DND-LL3ABRND

LiftMaster Sprocket, 50B18T, 1-1/2"B x 3/8" | LIF-15-50B18TKK Wireless Intercom Systems Circular frame illumination in redLiftMaster Sprocket, 50B18T, 1 1 2"B x 3 8" LIF 15 50B18TKK This is a replacement Sprocket (50B18T, 1 1 2"B x 3 8") for use with various LiftMaster Commercial Door Operators. Genuine LiftMaster replacement part. Also known as: 159104