SAN FRANCISCO (KGO) --7 On Your Side's Michael Finney partnered up with consumer reports, and found that some carbon monoxide detectors don't make the grade.
If you have purchased a carbon monoxide alarm, you'll want to hear about this review from consumer reports that they may not work.
The alarms are designed to sound before the level of carbon monoxide in a person's bloodstream would reach a dangerous level.
"We test each carbon monoxide alarm at two CO levels. First we test at 100 parts per million, where the alarm should sound after about 40 minutes. Then we test at 400 parts per million, when the alarm should sound between 4 and 15 minutes," Consumer Reports Engineer Bernie Deitrick said.
Three alarms failed some aspect of consumer reports testing, either for going off too quickly, or not at all.
Also of note is that the three failed alarms do not have a UL certification, a mark given to all co alarms that meet a voluntary industry safety standard.
If you already own one of the Foho YJ-806 LCD, GoChange 882 LCD, or NetBoat WB_H3110061 LCD carbon monoxide alarms we advise that you stop using them and replace them with one of our recommended co alarms that do meet the UL certifications. We recommend the top-rated First Alert CO615 - a stand-alone alarm, or the First Alert One-Link SCO501CN, an interconnected alarm that syncs with multiple alarms in your home.
Click the video viewer above to see Michael's full report.
All Consumer Reports material Copyright 2017 Consumer Reports, Inc. ALL RIGHTS RESERVED. Consumer Reports is a not-for-profit organization which accepts no advertising. It has no commercial relationship with any advertiser or sponsor on this site. For more information visit consumer.org.