LiftMaster 041AC050-2M Receiver Logic Board (AC) mini external buzzer Works on most standard doors

Works on most standard doors with deadbolt prep

Battery Life: 18 - 24 months

LiftMaster 20-1050C-2

even in challenging operational conditions

Ultra-reliable hydraulics contain only one gallon of high performance hydraulic fluid

LiftMaster 041AC050-2M Receiver Logic Board (AC) mini external buzzer Works on most standard doorsLiftMaster 041AC050 2M Receiver Logic Board (AC) This is a 315MHz Security+ Receiver Logic Board with End Panel Replacement Kit. For use with various LiftMaster and Chamberlain AC Deluxe Chain Drive Garage Door Openers; manufactured from 2005 to 2015. The unit will feature a purple learn button. Check the manual or replacement parts diagram for specific part information before ordering to ensure compatibility. Genuine LiftMaster replacement part. Also