LiftMaster 829LM Garage Door Monitor for All LiftMaster, Chamberlain and Craftsman Openers with MyQ Technology.
- Monitor and control the garage from inside the house.
- LED Lights indicate whether your garage door is open or closed.
- Audible alert lets you know whenever your garage door is opened.
- Monitors and controls up to 4 garage doors
!!!ONLY WORKS WITH MyQ Compatible Garage Door Openers!!!