System Sensor Recalls Combination Carbon Monoxide and Smoke Detectors Due to Carbon Monoxide Hazard
U.S. Consumer Product Safety Commission recall (2015-02-11). Hazards: carbon monoxide, chemical. Models: COSMO-2W, COSMO-4W. About 1,450 units in the US.
| Agency | U.S. Consumer Product Safety Commission |
|---|---|
| Recall number | 15077 |
| Published | 2015-02-11 |
| Last updated | 2015-05-11 |
| Product category | Fire or Smoke Alarms |
| Products | i4 Series System Sensor combination carbon monoxide (CO)/smoke detectors |
| Firm named in the title | System Sensor |
| Firms | System Sensor, of St. Charles, Ill. (manufacturer) |
| Manufactured in | Mexico |
| Units (US) | 1,450 |
| Model numbers | COSMO-2W, COSMO-4W |
| Hazard classes | carbon monoxide, chemical |
| Remedy classes | replace |
| Sold | Security equipment dealers nationwide during September 2014 for about $75. |
Description
This recall involves System Sensor i4 series combination carbon monoxide/smoke detector models COSMO-2W and COSMO-4W manufactured between 9/3/14 and 9/13/14. The detectors are round, white, and measure about 5.5 inches in diameter. Recalled units have date codes 4091 or 4092 printed on the lower left-hand corner of the label affixed to the back of the product and on the packaging.
Hazard
The detectors can fail to detect carbon monoxide gas in the home, posing a risk of carbon monoxide poisoning.
Remedy
Consumers should immediately contact System Sensor to obtain a free replacement combination CO/smoke detector. Consumers should keep using the recalled detectors until replacement detectors are installed.
Incidents and injuries
None reported.
Machine access
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Source: U.S. Consumer Product Safety Commission recall notice (US Government work). Not affiliated with or endorsed by CPSC. Structured by Data Foundry (product-recall-structuring@2); last changed 2026-09-28. Always confirm with the agency notice.