Recall date: February 11, 2015
Recall number: 15-077

Recall Summary

Name of product:
i4 Series System Sensor combination carbon monoxide (CO)/smoke detectors
The detectors can fail to detect carbon monoxide gas in the home, posing a risk of carbon monoxide poisoning.
Consumer Contact:

System Sensor at (800) 736-7672 from 8 a.m. to 5 p.m. CT Monday through Friday or online at, and click on "Product Safety Notice" for more information.

Recall Details Report an Incident Involving this Product

About 1,450

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.


None reported.


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.

Sold At:

Security equipment dealers nationwide during September 2014 for about $75.

Manufactured In: