First Alert OneLInk SCO501CN carbon monoxide alarm

Price range:
$73.99 - $85.05
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Summary: This model was tested by our experts.
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Community icon13 people have reviewed this model.
Type: Interconnected alarms
About - First Alert OneLInk SCO501CN

The First Alert OneLInk SCO501CN is part of the CO & smoke alarm test program at Consumer Reports. In our lab tests, carbon monoxide alarm models like the OneLInk SCO501CN are rated on multiple criteria, such as those listed below.

High CO levels:
High CO levels rates a model's response to CO of 300 parts per million.

Low CO levels:
Low CO levels rates a model's response to CO of 150 ppm.

Display/voice rates the accuracy of the CO level either displayed digitally or conveyed by voice message.
About This Brand

First Alert owns the BRK branded units, and the ONELINK line of wireless, talking units. Product offerings include plug-in, battery, hardwired, and hardwired with battery-backup units. Carbon monoxide units range from $20 to $100. First Alert also offers combination units that detect carbon monoxide and smoke.

These combo units use electrochemical and photoelectric technologies. First Alert is available at Home Depot, Lowes, Walmart, Target, and at food and drug stores.

Smoke alarm prices range from $13 to $100. Product offerings include dual sensor units, which combine ionization and photoelectric technologies.

Features & Specs - First Alert OneLInk SCO501CN
info Power supply Battery
info Peak memory Yes
More features and specs
User Reviews - First Alert OneLInk SCO501CN
User Reviews
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(2 of 2 customers found this review helpful)
Too troublesome.
Best Uses
I had 6 of these. Every time I changed the batteries, all 6 detectors would often beep alarms and/or talk like crazy. With anyone else home it was a huge nuisance. And keeping them programmed for each location was sometimes a problem, since changing the batteries sometimes erased the programming. Programming any of them disturbed the whole house as well. And occasionally one would false alarm, setting off all 6 talking units again. The preprogrammed speech is very long and very annoying. They drove us crazy doing routine maintenance. We all hated them. Finally after 4 1/2 years, 5 of the 6 started beeping their end of life warning. The 6th one is still in use a year later. The other 5 might have still been under warranty when they announced their end of life. But I don't even want new ones for free. I never want to see them again. I think that most alarms are loud enough that everyone in the house hears it. So the interconnect and talking features, in my opinion, are unnecessary and cause too many problems, even in a 5,000 sq ft house. They may have been good at detecting fires and/or CO - don't know since I never had an emergency. I now see that this model, as well as the newer PC910 and AC10-500 models, with 10-year batteries, get terrible user reviews on Amazon. I'm now trying to decide what to replace these with. I don't think they'll be First Alert.
How long have you owned it:
More than six months
Bottom Line
No, I would not recommend this to a friend.
(1 of 1 customers found this review helpful)
Works perfectly
Living Rooms
Best Uses
Entire House
I have these on every floor, in bedrooms, living room, in the shop, all linked, and I have no problems at all. I change the batteries with time change, had no false alarms, works great in the kitchen too. My wife don't burn things, she cooks pretty good!<br /><br />Highly recommend!!!
How long have you owned it:
More than six months
Bottom Line
Yes, I would recommend this to a friend.
(2 of 4 customers found this review helpful)
Too sensitive
Best Uses
It is far too sensitive to be practical. Normal cooking will set it off. Waste of money.
How long have you owned it:
One-to-three months
Bottom Line
No, I would not recommend this to a friend.
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