|Item Weight||10.4 ounces|
|Product Dimensions||5.6 x 2.2 x 5.7 inches|
|California residents||Click here for Proposition 65 warning|
|Item model number||SC9120B|
|Item Package Quantity||1|
|Number Of Holes||1|
|Usage||Indoor use only|
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First Alert BRK SC-9120B Hardwired Smoke and Carbon Monoxide Alarm with Battery Backup
|Price:||$34.99 & FREE Shipping|
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- Superior carbon monoxide sensor and dual ionization smoke alarm
- Inter-connectable with BRK and First Alert hardwired smoke and carbon monoxide alarms
- Easy to install universal mount bracket
- Simple to use silence/test button; separate smoke and CO latching alarm indicators
- 9-volt battery included; 7-year limited warranty
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From the manufacturer
Quick plug-in power connector for easy installation. 120-volt AC inter-connectable with BRK and First Alert hardwired smoke and carbon monoxide alarms.
Smoke & Carbon Monoxide
This 2-in-1 combination smoke detector provides protection against both smoke and carbon monoxide. Combining the best of both for your safety.
Battery backup will help ensure your alarm is working during power outages. 9V battery included.
This alarm comes equipped with a mute button that serves the dual purpose of quickly silencing your alarm as well as testing its function.
.Superior carbon monoxide sensor and dual ionization smoke alarm|Inter-connectable with BRK and First Alert hardwired smoke and carbon monoxide alarms|Easy to install universal mount bracket|Simple to use silence/test button; separate smoke and CO latching alarm indicators|9-volt battery included; 7-year limited warranty
The BRK hardwire combination smoke and carbon monoxide alarm detects two hazards with one simple unit. Carbon monoxide (CO) is a colorless, odorless, deadly gas. It can be emitted by sources including gas or oil furnaces, gas clothes dryers, water heaters, fireplaces, wood stoves, charcoal grills, gas ranges, and space heaters. A clogged chimney, improper venting, and attached garages can also cause carbon monoxide accumulation. According to the Consumer Product Safety Commission (CPSC), at least one CO alarm should be installed near a home's sleeping area.
The BRK SC9120 hardwire combination smoke and CO alarm with battery backup includes these features:
- Quick plug-in power connector for easy installation.
- 120-volt AC inter-connectable (with maximum 18 compatible devices). The alarm can be interconnected with up to 12 other compatible smoke alarms and six compatible devices like bells, horns, repeaters and door closers. If one unit triggers an alarm, all smoke alarms in the series will sound. Power indicators show which unit in the series initiated the alarm.
- Ionization sensor which is more effective at detecting flaming fires which consume combustible materials rapidly and spread quickly.
- Microprocessor controlled for fewer nuisance alarms.
- Single test/silence button which both silences a non-threatening alarm or low battery warning and allows you to test the unit's functionality.
- Automatically performs internal test of functionality.
- Latching alarm indicator which automatically identifies which unit initiated the alarm.
- Separate smoke and carbon monoxide visual and audible warnings.
- Battery drawer lock and mounting bracket lock for tamper resistance.
- AC power indicator and alarm indicator light.
- Low battery warning "chirp" and missing battery tab.
- 9-volt battery backup for peace of mind during power outages.
What's in the Box
One combination smoke and CO alarm, one 9-volt battery, and user's manual
Top customer reviews
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I replaced the 120V system with these new CO/Smoke alarms. It is an easy change as they are a direct bolt on to the utility box where the power comes in.
We now have CO/Smoke with a battery backup on each floor.
The CO is REALLY important; it can kill you and your family with no warning. You just die in your sleep.
Reason enough and these are nice units. They have a dim green light within so you can see they are "up" all the time.
Get them it is a no briainer!
Superior carbon monoxide sensor and dual ionization smoke alarm
• Inter-connectable with BRK and First Alert hardwired smoke and carbon monoxide alarms
• Easy to install universal mount bracket
• Simple to use silence/test button; separate smoke and CO latching alarm indicators
• 9-volt battery included; 7-year limited warranty
We are encouraged by the makers of these devices to replace smoke detectors and CO detectors every ten years. Sometimes we may think this is not necessary because the devices appear to still be working--the light is on. But I have read up on this a little and learned that the devices wear out after ten years because they are constantly "testing" the air, even when there is no alarm event to trigger them.
So, all of us homeowners need to buy one or more of these every ten years, so we might as well buy inexpensive ones. I found the prices on Amazon, including on this particular combination smoke detector/CO detector, to be considerably cheaper than at hardware stores such as HD or Lowe's. In particular, if you need to buy in bulk, it is way cheaper online.
One tip. Some smoke detectors or CO detectors (or combination devices) are sold with "sealed" lithium batteries that, we are told, will mean that we do not have to replace the battery for ten years. This is fantastic, especially if you have a detector mounted on a high ceiling that is hard to get to. I was about to buy one that came with a sealed lithium battery but then I realized that instead I could just buy a regular detector and then buy the battery myself, separately, at Radio Shack (these are about $10 each as I recall). This was less expensive and I think also allows more flexibility. For example, say I had one with a sealed lithium battery and it started chirping on me in five or six years for no good reason. Presumably I have to throw the whole thing out at the point, the battery being "sealed" in. But if that happens with a battery I have purchased separately, all I have to do is replace the battery and then I am "back in the game, baby"!
I have only had these for a few days. I will update if anything strange or glitchy happens, but so far they have been exactly as expected.