Transmitter Solutions Firefly 315 Manual page 2

TRAFIR315LMD21K
SU7315LMD21K
"NORMAL MODE"
LiftMaster 312 HM Receiver -"NORMAL MODE":
Any changes or modifications to Transmitter Solutions equipment not
expressly approved by Transmitter Solutions could void the manufacturer's
warranty and could void the user's authority to operate the equipment.