  LiftMaster 83LM 3-Button Transmitter Garage Door Remote Compatible with the following models:
Chamberlain, Sears, Craftsman.
Chamberlain 850CB,853CB,856CB
Sears Craftsman 139.53707,139.53870,139.53779,139.53879,139.53800
Also compatible with wireless keypad model number 66LM (same as model 740CB, 139.53776, 139.53876)
390 MHZ Frequency, compatible with operators manufactured between 1993-1997
"Smart" coding button with GREEN LED
3 channel transmitter, compatible with the "Billion Code" series
Visor clip and Lithium battery (5 years life w/normal use) included
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