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LiftMaster 333LM Tri-Color Three-Button Visor 315MHz Digital Code Switch Type Garage Door Or Gate Opener Remote Control.
The 333LM remote is typically used in commercial application as an Open, Stop, Close remote because the color-coded buttons makes it easy for identification of the open, stop, close functions of the remote. The 333LM works with LiftMaster 9 trinary (+, 0, -) code switch compatible radio receivers manufactured since 2005 with the purple learn button operating on the 315MHz frequency.
The LiftMaster 361LM is a one-button visor style digital trinary (+, 0, -) code switch remote control compatible with LiftMaster 315MHz versions of garage door openers and gate radio receivers as well as the older model 61LC used in Canada. This remote is typically used for gated communities that use a LiftMaster 315MHz version radio receiver with the purple learn button set to code switch mode.