No more getting out of bed and stumbling downstairs to check if the garage door is closed. The Chamberlain® Garage Door Monitor tells you if your garage door is open or closed from any room in your home. That's convenient, dependable security – and peace-of-mind – for the largest door to your home.
- Works with any garage door
- Monitors up to 4 garage doors (with additional sensors – CLDM2)
- When light flashes red, door is open
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