Liftmaster 355LM 315MHz Garage Door Opener Receiver
Price 20.35 USD
The 355LM 315MHz SECURITY+ technology works with one 315 frequency operator with a purple learn button on the motor head. The 355LM accepts up to 8 Securtiy+ remote controls and one keyless entry code(377lm). Will work on 2 or 3 wire systems. If your system is 2-wire, a 24-volt 85LM transformer is necessary.