The USI Electric MPC122S Combination Smoke & Carbon Monoxide Detector might alarm too quickly, too late, or not at all, when exposed to carbon monoxide, according to tests conducted by Consumer ...

Thousands of smoke and carbon monoxide alarms sold nationwide are being recalled because they could fail to warn homeowners of hazardous levels of carbon monoxide, according to an independent ...

Universal Security Instruments is recalling some combination smoke and carbon monoxide alarms because they can fail to alert consumers to the presence of a hazardous level of carbon monoxide, the ...

Front of recalled hardwired USI Electric 2-in-1 Photoelectric Smoke & Fire + Carbon Monoxide alarm Model MPC122S with a manufacturing date code of 2017JUN02. (Courtesy Consumer Product Safety ...