Rated 5 out of 5 by 4 reviewers.
Rated 5 out of 5 by On my third one because they work The best thing about this unit is that it will show you lower levels that aren't high enough to bring in alarm. That lets you know so that you can investigate the problem before just evacuating. 09/24/2012
Rated 5 out of 5 by Carbon Monoxide ALARM I replaced an existing one with this,the manufacter gives them a 7 year usefull life I also bought that 1 at walmart. 03/06/2012
1-3 of 3 total reviews
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