| 1. | Master Lock Garage Door Opener ATS 211 User Guide Life Master The Professional Line OWNER S MANUAL MODEL ATS 211 COMMERCIAL DOOR OPENER For Residential and Light Duty Commercial Use Install on Sectional Doors Only Please read this manual and the enclosed safety materials carefully Fasten the manual near the garage door after installation The Chamberlain Group Inc A DUCHOSSOIS ENTERPRISE 845 Larch Avenue Elmhurst Illinois 60126 As of date of manufacture meets all ANSI UL 325 Safety Standards and requireme |
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