LiftMaster Sprocket, 50B18T, 1-1/2"B x 3/8" | LIF-15-50B18TKK Wireless Intercom Systems this 20-foot Varioboom arm includes

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

Model Number: AX12880

Certified by UL CAP

Hereby is an overview of the different types of Boosters:

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

LiftMaster Sprocket, 50B18T, 1-1/2"B x 3/8" | LIF-15-50B18TKK Wireless Intercom Systems this 20-foot Varioboom arm includesLiftMaster 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