The i4 Series System Sensor combination carbon monoxide (CO)/smoke detectors has been recalled. The detectors can fail to detect carbon monoxide gas, posing a risk of carbon monoxide poisoning.
Models involved in the recall are COSMO-2W and COSMO-4W manufactured between 9/3/14 and 9/13/14. 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.
If you have one of the detectors involved in the recall you 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.
For more information on the recall please follow this link:
Combination Carbon Monoxide and Smoke Detector Recall