Chamberlain Universal Garage Door Monitor


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List price $23.88
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Lets you know if your garage door is open or closed from any room in your home

About this item

If you are a person who usually forgets to close the door, the Chamberlain Universal Garage Door Monitor is a great fit for you. The best thing about this wireless door alarm system is that it works with every garage door and can monitor up to four doors. This Chamberlain garage door sensor notifies you if it is open or closed no matter which corner of the house you are in. The mechanism of the device is quite simple. When you leave your garage door open, the sensor automatically sends a signal to the monitor, and a garage door alarm flashes a red light indicating that the door is open. You can plug this wireless door monitor in any convenient location in your house and installation is minimal.

Chamberlain Universal Garage Door Monitor:

  • Works with any garage door
  • Chamberlain garage door sensor monitors up to 4 garage doors (with additional sensors - CLDM2)
  • When light flashes red, door is open
  • Fast, easy installation; no tools needed


Model No.: CLDM1
Shipping Weight (in pounds): 2.5
Product in Inches (L x W x H): 2.5 x 4.0 x 1.5
Assembled in Country of Origin: USA
Origin of Components: USA or Imported

Customer reviews

Customer Reviews | 61 reviews | 4.4 out of 5

4.5 stars

61 reviews | 4.4 out of 5

5 stars
4 stars
3 stars
2 stars
1 stars
Would recommend to a friend



Great Product

Customer review by roadTraveler

5.0 stars by roadTraveler

Seems to work very well. Be sure and extend the wire receiver antenna out straight as the instructions say. It gave my installation about a 100 feet range. The sticky pad on my transmitter wouldn't work on my insulated garage door so I had to make a different bracket. That's why I rated it lower on expectations. It has two holes in the bottom of the case which also appear to be for mounting. The instructions say the 2032 transmitter battery has to be changed once a year similar to a smoke detector. Press firmly on the flat tab to open the transmitter case to install the battery. The instructions need a better diagram to show this. Overall I love this product. It seems to be very well designed and well made. Leaving my garage door open is a thing of the past!!

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Denver, CO
Would recommend to a friend? Yes
Ownership:2 - 7 weeks
Age:55 - 64
Usage:Every day
Works Great !!

Customer review by 201066

5.0 stars by 201066

We tired of the need for our neighbors to phone and remind us to close the garage door. I mounted the monitor below our TV where it can't be missed.

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Tulsa, OK
Would recommend to a friend? Yes
Ownership:2 - 7 weeks
Usage:Every day
Works Like a Charm!!

Customer review by terrywayne

5.0 stars by terrywayne

I can't count the number of times that my wife and I have risen in the morning to find the sun shining in the door of garage because one of us had forgotten to shut it before going to bed.... NO MORE!!! Just one glance at the little monitor lying on the nitestand and if it is glowing green we know the garage door is SHUT tight!!!... In fact, we put the extra garage door remote next to the monitor so if it is flashing red (meaning the door is open), I just press the remote and shut the door without taking another step and "presto-majic" the door shuts and the monitor shows GREEN.... ain't life wonderful!! No more worries about someone walking off with stuff in the garage or even worse, coming in the house through the garage while we were asleep..... at least, not through the garage door we left open by mistake. Thank you Chamberlain Universal Garage Door Monitor.

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Pensacola, Florida
Would recommend to a friend? Yes
Ownership:2 - 7 weeks
Age:65 or older
Usage:Every day
1-3 of 54 total reviews See all

Customer Q&A

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Chamberlain Universal Garage Door Monitor
by an anonymous customer 10/21/2009
  • yes
    by pickem4/18/2011
    Was this answer helpful? (1) (0)
  • Yes
    by Cookyduster1/7/2011
    Was this answer helpful? (0) (0)
  • yes. It has a transmitter which attaches to the garage door and a receiver which you can install inside your home . The transmitter sends a wireless signal to the receiver.
    by frequentlyforgetful12/30/2010
    Was this answer helpful? (1) (0)
  • Yes. The remote radio transmitter is battery operated and sticks on the garage door. The interior base receiving unit plugs into any electrical wall outlet and picks up the remote's signal from anywhere in my house. No wiring needed other than the existing standard wall electrical outlet for the interior unit.
    by OrlandoTom12/30/2010
    Was this answer helpful? (1) (0)
  • Yes, velcro a battery operated unit to the door. Plug the monitor into a 110 outlet.
    by BobS1112/30/2010
    Was this answer helpful? (1) (0)
  • Yes, it is supposed to have a range of 150ft.
    by 20106612/30/2010
    Was this answer helpful? (1) (0)
  • Yes it's wireless from transmitter to receiver. Receiver has transformer you have to plug in outlet. Transmitter comes with battery.
    by VTX1800Biker9/17/2010
    Was this answer helpful? (1) (0)
  • Yes
    by Practical20109/17/2010
    Was this answer helpful? (1) (0)
  • Yes, it is wireless.... you do have to plug in the monitor to a wall plug inside the house, but there are no wires running from the monitor to the transmitter and the transmitter (the unit that mounts on the garage door) is totally wireless.
    by terrywayne7/28/2010
    Was this answer helpful? (1) (0)
  • Yes it is wireless. They claim a 150 ft range as I recall. I use it about 40 ft from garage door
    by OzzieSr2/3/2015
    Was this answer helpful? (1) (0)
1-3 of 3 questions See all

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Product warranty: 1 Year See details

Supplier Warranty: Chamberlain will repair or replace any accessory product that is found to be defective within one year from time of purchase.
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