41AC050-1M Chamberlain LiftMaster Garage Door Receiver Logic Circuit Board

41AC050-1M Chamberlain LiftMaster Garage Door Receiver Logic Circuit Board LiftMaster Chamberlain Garage Door Opener Circuit Board - Part # 41AC050-1 Liftmaster 41AC050-1 Receiver Logic Board Assembly for 3245, 3255, PD210D, PD212D & HD200D We recommend using Liftmaster 990LM Garage Door Protector when replacing safety sensors or circuit boards.