Model # CLDM2

Internet #100431672

Chamberlain Garage Door Monitor Add-on Sensor

Discontinued Chamberlain

Garage Door Monitor Add-on Sensor

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Frequently Bought Together

Product Overview

Keep tabs on up to 4 doors with one Chamberlain Garage Door Monitor and three Add-on Sensors. Sensor mounts to garage door with fastening strip. When the monitors light flashes red, the garage door is open.

  • Sensor mounts to garage door with fastening strip
  • When the monitors light flashes red, the garage door is open
  • Indicates open/close status of additional door (s) using the monitor of the CLDM1
  • Added security and peace-of-mind

Info & Guides

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Product Depth (in.)
Product Height (in.)
Product Width (in.)


Doors Operated by Remote
Garage Door Part/Accessory Type
Garage Door Monitor
Garage Opener Device Type
Model/year compatibility
Power Source
Product Weight (lb.)

Warranty / Certifications

Manufacturer Warranty
1 year warranty

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Customer Questions & Answers

Will the Chamberlin CLDM 2 garage door monitor sensor work on a Sears receiver ??

Asked by: Anonymous
Hi Nolan, thank you for your question. The CLDM2 is only an additional sensor that can be programmed to a CLDM1. This is not compatible with individual garage door openers with out a CLDM1.
Answered by: TheChamberlainTeam
Date published: 2015-09-17

Can this remote be programed with the learn button on the motor. I recently purchased an LW2000 opener.

Asked by: Anonymous
Hi Jim, Thanks for your question and interest in this item. More information is needed to accurately answer your question. Please contact our Online Customer Service Department at 800-430-3376 to get more assistance with this item. Our hours of operation are between 6:00 a.m. and 2:00 a.m. Eastern Time daily.
Answered by: Sushma
Date published: 2015-11-04

Can this be programmable to an OVERHEAD 65A 1/3 HP garage door opener

I have an OVERHEAD DOOR 65A 1/3 HP garage door opener and need an extra remote. Is this Chamberlain Garage Door Monitor Add-on Sensor Model # CLDM2 Internet # 100431672 programmable to an OVERHEAD garage door opener?
Asked by: Anonymous
Hello this is Tangelo from the Home Depot Community! The model CLDM2 only works if you already have the CLDM1, which is the receiver, the CLDM2 is an additional transmitter. The Chamberlain Garage Door Monitor lets you know if your garage door is open or closed, it will not open or close the door. If you are looking for an additional remote, consider the one below. I hope this helps, if you have any more questions you can find me on our website at
Answered by: Anonymous
Date published: 2015-09-17

I have a stanley remote will this one convert to that, it has the older digets for codes!!

im guessing the door opener is about 15 years old
Asked by: Anonymous
Hi DT! The Chamberlain CLD2 add on sensor will allow you to expand the CLD1 to more than one garage door. This accessory will allow you tell if your garage doors are in the open or closed position and is compatible with any make of garage door opener. This product does not provide the option to open or close the door remotely. If you are looking for a compatible remote control to operate your Stanley garage door opener I would suggest taking a look at the Chamberlain CKLIK1U universal remote control. You can find more information on the KLICK1U using the link below:
Answered by: TheChamberlainTeam
Date published: 2015-09-20
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Customer Reviews

Garage Door Monitor Add-on Sensor is rated 4.0 out of 5 by 7.
Rated 3 out of 5 by from Limited Range I received the garage door monitor with my purchase of a Chamberlain Whisper-Drive garage door opener. I purchased this Add-on sensor for the second door of my garage and was able to pair it easily to the system. However, the range of the system is rather short and it took me a week of moving the receiver around the house to find a location where the receiver would not lose contact with the sensors. I even purchased a new battery for each sensor to be sure the limited range was not a weak battery. It wasn't. Seems to be working as intended now that I located the receiver in the corner of the family room closest to the garage doors. Make sure you have an electrical outlet inside the house close to the garage doors that is convenient for you to monitor the garage door status. Will not work in your upstairs bedroom or even on the opposite side of the house from the garage.
Date published: 2010-12-13
Rated 5 out of 5 by from wbsail the sensors are reasonably priced and you can add three more to the main monitor./sensor system. I had the whole system installed and working within 5 minutes....... mostly the system can be installed without any tools. The exception is to use a screw to fasten the monitor to the wall.
Date published: 2011-02-19
Rated 5 out of 5 by from Easy to program Programming was easier than the instructions. It just works.
Date published: 2015-02-17
Rated 5 out of 5 by from Works perfectly I bought this system so I could know if the garage is closed. So far it has worked perfectly and saved me from more then one midnight run downstairs to verify the door it closed. The installation only takes a minute and the programming of the base unit to recognize the add on is simple and easy to do.
Date published: 2014-12-17
Rated 5 out of 5 by from Does the job Garage monitor used to sense two garage doors, easy to install add-on sensor. The range of the monitor extends over 50 ft, even thru several walls. Cost is reasonable. Highly recommended.
Date published: 2014-11-04
Rated 1 out of 5 by from replacement transponder did not function Had system for 3 years and transponder unit began to fail. Ordered replacement transponder and it did not work at all. Would advise not to buy components separately.
Date published: 2012-09-04
Rated 4 out of 5 by from The product is doing its job fine The product is fine. I already had one when I ordered this one. I needed the second one because some broke the remote on the garage door. I have had the product for sometime no and am very happy with it.
Date published: 2011-12-28
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