Universal Security 4-in-1 Smoke Detector $34 at Amazon

$34 $60
Amazon has the Universal Security 4-in-1 Smoke Sending Hard Wired Alarm (MDSCN111) for $48 - 30% off coupon (click "Clip Coupon") = $34 with free shipping. Detects fast-flaming fires, slow-smoldering fires, carbon monoxide and natural gas (or methane).
$34 retail: $60
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suednim
suednim
Ben's cred: 446
Posted 04/22/2015 at 12:39 PM PT
Posted 04/22/2015 at 12:39 PM PT
IDK. Methane rises and CO falls so how will this detect both well 'nuf?
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ken2400
ken2400
Ben's cred: 35
Posted 04/22/2015 at 02:34 PM PT
Posted 04/22/2015 at 02:34 PM PT
As it says in the description.
Hard wired Needs 120 AC
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suednim
suednim
Ben's cred: 5862
Posted 04/22/2015 at 03:38 PM PT
Posted 04/22/2015 at 03:38 PM PT
CO falls so how will this detect both well 'nuf?


CO rises, and mixes fairly well.
https://nest.com/support/article/Shouldn-t-a-carbon-monoxide-CO-alarm-be-installed-near-the-floor
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