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First Alert SC9120B Hardwire Combination Smoke/Carbon Monoxide Alarm with Battery Backup $27.74t amazon

sdbargain 367 95 October 13, 2013 at 03:26 PM in Home & Home Improvement (2) More Amazon Deals
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Last Edited by DeividdoSama October 13, 2013 at 04:51 PM
I just bought this thru amazon for 27.74 Walmart/Lowes/Homedepot is listing it for about $48


http://www.amazon.com/gp/product/...os_product

It shows $34.68 first...then at check out becomes 27.74 due to the "Up to 40% Off DIY Essentials" promotion

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Last Edited by BostonGirl October 16, 2013 at 07:05 AM
small increase to $28.23

23 Comments

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#3
Nevermind
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Last edited by pongoboy October 13, 2013 at 03:50 PM
#4
Great buy...thanks OP!
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#5
I can't recall but Costco sells something similar. Does anyone know it's price?
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#6
At first glance this looked like a great way to upgrade but man...the one-star amazon reviews are brutal. Looks like lots of false alarms.

I was going to jump on this but I think I'll pass and do some more research into CO detectors before purchasing.

Thanks anyway OP.
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#7
Quote from vizay View Post :
I can't recall but Costco sells something similar. Does anyone know it's price?
The ones I've seen at Costco are battery-operated, not hardwired. Returned five 2-packs because of that.
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#8
One month into home ownership I replaced all 7 smoke alarms from First Alert that looked a lot like these to Kidde. They were all AC powered with 9V backup and about half of them would chirp even if you changed the batteries, it was especially nerve-racking when one would decide it was time to start chirping in the middle of the night. I definitely would not recommend First Alert smoke alarms...
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#9
Unbelievable timing. I have 6 of these in my house for the past 3 years and they work flawlessly until your kid breaks it. Therefore, I needed a new one today. :-)
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Last edited by yarddawg7 October 14, 2013 at 02:12 PM

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#10
Quote from pseudoswede View Post :
The ones I've seen at Costco are battery-operated, not hardwired. Returned five 2-packs because of that.
Did the same exact thing you did yesterday with five packs.
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#11
Quote from elguapo16 View Post :
At first glance this looked like a great way to upgrade but man...the one-star amazon reviews are brutal. Looks like lots of false alarms.

I was going to jump on this but I think I'll pass and do some more research into CO detectors before purchasing.

Thanks anyway OP.
According to the manual the "three chirps" everyone is complaining about means it is defective and you should have it replaced under warranty. Considering how rough shipping can be sometimes, I'd expect a sensor to be somewhat fragile, and the fact that pretty much all of those people seem to be trying to replace their batteries instead of having read their instruction manuals.... I'd disregard at least half of them. Especially the people who left it in all night and complained about getting no sleep... if its defective obviously you should disconnect/stop using it... not leave it plugged in to bother you. At least it TELLS you there is a problem.
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#12
Will these interconnect with the smoke-only alarms? http://www.amazon.com/gp/product/B000KKHWLU/
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#13
Quote from pseudoswede View Post :
The ones I've seen at Costco are battery-operated, not hardwired. Returned five 2-packs because of that.
Not sure if it's everywhere, but keep in mind that battery-only ones are switching to Lithium batteries instead of regular 9 volts )or AA) per the fire code (here in Maryland -- probably nationwide). They don't want people taking the batteries out when they start chirping and leaving the house without smoke/fire detection. The Lithium ones have a sealed battery compartment, apparently. If you sell your place, you have to have the new ones, I believe.

Doesn't apply to hardwired detectors which have a 9v backup. A quick search, and I found that the Nat'l Association of State Fire Marshals adopted the recommendation in 2012.
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#14
Quote from unksol View Post :
According to the manual the "three chirps" everyone is complaining about means it is defective and you should have it replaced under warranty. Considering how rough shipping can be sometimes, I'd expect a sensor to be somewhat fragile, and the fact that pretty much all of those people seem to be trying to replace their batteries instead of having read their instruction manuals.... I'd disregard at least half of them. Especially the people who left it in all night and complained about getting no sleep... if its defective obviously you should disconnect/stop using it... not leave it plugged in to bother you. At least it TELLS you there is a problem.
Another thing that can damage detectors is power problems. There was a brownout here a few years ago that took out some of electronics, including the combo co/fire detectors. The fire-only detectors are apparently tougher and did not have a problem.

On a different note, the local power company had some attractive person on the news telling people to send in receipts, they'll cover damage, blah blah. I did that, and several months later received a letter saying they wouldn't cover it because they were not required to. It's clear they intended to screw everyone from the start. I just wish they didn't waste everyone's time in gathering up receipts, etc. I guess they just wanted to "look good" by sending out their corporate liar on the news.
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#15
First alert alarms are bad. I have some and going to replace them, false alarms all the time.
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