This Liftmaster 877MAX is directly compatible with the Chamberlain 940D and is a wireless keypad that is compatible with all LiftMaster, Chamberlain and Sears Craftsman openers that use the 315 MHz Security+ radio receiver and or have a PURPLE learn button.
This great unit from LiftMaster will work on your Chamberlain, LiftMaster, Sears Craftsman garage door or automatic gate opener that uses the Security+ 315 MHz radio frequency. If you have any of the following remotes this keypad will work with your opener:
-Chamberlain: 950CD, 950D, 953CD, 953D, 956CD, or 956D
-LiftMaster: 371LM, 372LM, 373LM, 374LM, or 370LM
-Sears Craftsman: 139.53753 or 139.53752
- Controls upto 3 different devices
- Includes battery (3V 2032)
- Includes programming manual
- Dimensions: 6.25 by 2.5 by 1 inches
- Includes manufacturers warrenty
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