Liftmaster 041D7924-1 My Q 821lm Additional Sensor
041D7924-1 is a LiftMaster® door sensor kit. This garage door opener accessory is for use with LiftMaster® 821LM door control and features MyQ® universal technology. Compatible with various LiftMaster® garage door openers manufactured after 2011.
The Liftmaster My Q 821lm Additional Sensor is the ideal additional sensor unit for your second garage door. It can control up to two garage doors and up to 16 MyQ-Enabled devices. It is compatible with Liftmaster 821LM and is MyQ enabled to monitor, open and close your garage door and control your home lighting from a smartphone tablet or computer.
