LiftMaster LED Board | LIF-041B0773-1 10-8021 The top button can be

The top button can be hidden with the top button cover supplied

Two configurable user relays (30VDC solid state + 250VAC electromechanical) handle access control and safety outputs

Switch 2: Load Unsensed

LiftMaster 000000000000002103

LiftMaster Mega Arm Chip | LIF-K-127A0110B

LiftMaster LED Board | LIF-041B0773-1 10-8021 The top button can beLiftMaster LED Board LIF 041B0773 1 This is an LED Replacement Board. For use with various LiftMaster Telephone Entry Systems. Check the manual or replacement parts diagram for specific part information before ordering to ensure compatibility. Genuine LiftMaster replacement part. Also Known As LiftMaster 41B773 1