LiftMaster 1-btn Security+ Transmitter 315MHz
LiftMaster 3-btn Security+ Transmitter 315MHz
LiftMaster 1-btn Security+ Transmitter 390MHz
LiftMaster 4-btn Sec+ Transmitter 315 MHz - DISC
LiftMaster 2-btn Security+ Transmitter 390 MHz ***Discontinued
LiftMaster 2-btn Security+ Transmitter 315 MHz ****Discontinued - Replaced by 892LT**