ADT Recalls Carbon Monoxide Detectors Due to Failure to Properly Indicate End of Useful Life
Home product recall 12-701. Announced by CPSC on Oct 20, 2011.
Watch and the shortlist are kept with a free account, on every device. Your watch list. CPSC’s own notice is on cpsc.gov.
The short answer
Announced by CPSC on Oct 20, 2011. Copied from CPSC on Oct 19, 2026.
Every line below is in CPSC’s own words, with its source beside it.
What’s wrong with it?
When the CO detectors reach the end of their useful life, they should send a signal to make a sound in the home alarm panel alerting consumers it is time to replace them and a signal to ADT’s alarm monitoring center. Some of the detectors were not wired properly to the ADT alarm system, resulting in the sound not going off in the home alarm panel and no signal to the ADT alarm monitoring center at the end of its useful life. Not replacing a CO detector at the end its useful life poses a CO poisoning hazard to consumers.
CPSC, Recalls API. Checked Oct 19, 2026. Updated daily.
What should you do?
Consumers should contact ADT immediately for a free inspection of the recalled detectors and, if necessary, a free repair. Consumers should not attempt to disable the recalled detectors. ADT has contacted all customers.
CPSC, Recalls API. Checked Oct 19, 2026. Updated daily.
- What the company offers to fix a recalled product or vehicle: a repair, a replacement or a refund, as the recall notice says. For a vehicle, dealers make the safety repair free. Follow the notice’s own steps, or contact the company it names. Source: CPSC; NHTSA (49 U.S.C. 30120).: repair.
- How to reach the firm: For additional information, contact ADT toll-free at (800) 238-2727 between 8 a.m. and 10 p.m. ET Monday through Friday or visit the company’s website at www.us.adt.com
Which ones are recalled?
This recall involves hard-wired carbon monoxide detectors with model CO 1224T installed by ADT. The model number is behind the front cover.
About 20,000 units, as CPSC gives them.
CO 1224T Carbon Monoxide (CO) detectors.
CPSC, Recalls API. Checked Oct 19, 2026. Updated daily.
CPSC’s photos
CPSC shows 1 photo on its notice. Hearth Record doesn’t copy them; each opens on cpsc.gov.
Who made and sold it?
- Made by Sensor System, St. Charles, Ill.
- Distributed by ADT Security Services Inc., Boca Raton, Fla.
- Installed by ADT between October 2008 and December 2010 as part of home security systems.
- Made in China and Mexico, as the notice gives it.
CPSC, Recalls API. Checked Oct 19, 2026. Updated daily.
Was anyone hurt?
None reported.
CPSC, Recalls API. Checked Oct 19, 2026. Updated daily.
What the record doesn’t say
- The notice lists no UPCs, so check the model, the description and the photos.
- The notice lists no model numbers in a field of their own; its description may give them.
- How many have been returned or fixed isn’t in the notice.
Hearth Record wrote these lines.
Sources
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U.S. Consumer Product Safety Commission, Recalls API.
Checked Oct 19, 2026. Updated daily. Public domain (U.S. Government work). CPSC asks to be credited, and that no endorsement be implied.
Recalls of kids’ and home products are from the U.S. Consumer Product Safety Commission (CPSC). CPSC does not endorse Hearth Record. Copied on Oct 19, 2026.