Liftmaster 821LM Extra Sensor

Features

Connectivity

• Monitor, open and close your garage door and control home lighting, all from a smartphone tablet or computer with MyQ® Technology.
• Login to MyQ.

Performance

• Controls up to two garage doors at once (requires extra door sensor, sold separately).
• Controls up to 16 MyQ-Enabled devices.

Compatibility

• Genie®
• Linear/Moore-o-Matic
• Stanley
• Overhead Door®
• Wayne Dalton®
• Craftsman®
• Chamberlain®
• LiftMaster®