Fix It Notes Bulletin · Safety warning, Smoke alarms
CPSC warns two sets of combination smoke and CO alarms sold online fail to alarm
Published October 29, 2026 · Source: CPSC
The short version: The CPSC told consumers to stop using JuzhiAnn, Yfwsrecinoe and JAEHSKA alarms (model JZA-540COM) and GuardianSense/KLTseanife alarms (model YHW-542COM-R) because they fail to sound in the presence of smoke and fire. The sellers have not agreed to recalls.
What happened
On October 29, 2026, the CPSC issued two warnings about combination smoke and carbon monoxide alarms sold on Amazon.com and eBay.com. The agency says both products fail to alarm in the presence of hazardous smoke and fire.
The first warning covers JuzhiAnn, Yfwsrecinoe and JAEHSKA alarms, model JZA-540COM, white units with a digital display that sold for about $11 to $107. The second covers GuardianSense/KLTseanife alarms, model YHW-542COM-R, which sold for about $18 to $168. Details are in the second CPSC warning.
In both cases the CPSC says the firms have been unresponsive to its request for a recall. The agency advises consumers to stop using the alarms, dispose of them, install working smoke and CO alarms, and not sell or give them away.
Why it matters if you fix things at home
A smoke alarm that does not sound is worse than a chirping one, because it gives a false sense of safety. Check the brand and model on the back of each alarm, press the test button monthly, and replace any alarm 10 years from its manufacture date. Our smoke alarm guide covers testing and replacement.