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   » » BarcodeComment: Home-units-carbon-monoxide-smoke-compatible-2116768011

First Alert SC9120B Hardwire Combination Smoke/Carbon Monoxide Alarm with Battery Backup (Tools & Home Improvement)

Hardwired ionization/CO combination alarm meets new construction requirements. Electrochemical Carbon Monoxide Sensor - the most accurate sensor available as compared to other sensing technologies Single button test/silence 9V Alkaline Battery Backup Latching alarm indicator - remembers which unit initiated an alarm Two silence features - can silence the low-battery chirp for up to eight hours or temporarily silence an unwanted nuisance alarm End of Life Signal provides audible notification
4.0 out of 5 stars
(VINE VOICE)  (TOP 1000 REVIEWER)  
Our house was wired for smoke detectors -- specifically the rather cheesy BRK 4120SB, which delights in false "low power" chirping. My goal was to replace the ones in the bedrooms with combination alarms that would alert us not only to smoke but to the presence of carbon monoxide. (Not to scare you but harm and even death from carbon monoxide poisoning are definite risks, especially in a home with deep-sleeping teenagers.)

I needed units that would be compatible with the wiring of our current system, and ideally ones that would accept the power leads, as wired. After some research here and elsewhere, I called the BRK help line and got definite information about the unit that would be compatible, as well as locations within the home where I both should and should not install units.

I ordered two units to start with, still being a bit leery of my previous experience, and can say that installation took less than 5 minutes per device.

1. Follow the...Read more

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     Our house was wired for smoke detectors -- specifically the rather cheesy BRK 4120SB, which delights in false "low power" chirping. My goal was to replace the ones in the bedrooms with combination alarms that would alert us not only to smoke but to the presence of carbon monoxide. (Not to scare you but harm and even death from carbon monoxide poisoning are definite risks, especially in a home with deep-sleeping teenagers.)I needed units that would be compatible with the wiring of our current system, and ideally ones that would accept the power leads, as wired. After some research here and elsewhere, I called the BRK help line and got definite information about the unit that would be compatible, as well as locations within the home where I both should and should not install units.I ordered two units to start with, still being a bit leery of my previous experience, and can say that installation took less than 5 minutes per device.1. Follow the...Read more
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