Friday, March 23, 2012

First Alert SC9120B Hardwire Combination Smoke/Carbon Monoxide Alarm with

First Alert SC9120B Hardwire Combination Smoke/Carbon Monoxide Alarm with Battery Backup
Price : $35.35
You Save : $57.64 (62%)

Item Description


Amazon.com Product Description
The BRK hardwire combination smoke and carbon monoxide alarm detects two hazards with a single basic unit. Carbon monoxide (CO) is a colorless, odorless, deadly gas. It can be emitted by sources which includes 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 result in carbon monoxide accumulation. According to the Consumer Product Safety Commission (CPSC), at least one particular CO alarm should be installed close to a home's sleeping area.
The BRK SC9120 hardwire combination smoke and CO alarm with battery backup includes these characteristics:
  • Rapid plug-in power connector for simple 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 far more effective at detecting flaming fires which consume combustible supplies rapidly and spread immediately.
  • Microprocessor controlled for fewer nuisance alarms.
  • Single test/silence button which both silences a non-threatening alarm or low battery warning and makes it possible for 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 through power outages.
All BRK Electronics carbon monoxide alarms are listed to UL Security Regular 2034 for residential carbon monoxide alarms. Consists of 9-volt backup battery. 5-year limited warranty.--Bree Norlander
What is in the Box A single combination smoke and CO alarm, a single 9-volt battery, and user's manual
First Alert SC9120B Hardwire Combination Smoke/Carbon Monoxide Alarm with Battery Backup

Client Evaluations


Our residence was wired for smoke detectors -- especially the rather cheesy BRK 4120SB, which delights in false "low power" chirping. My aim 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 dangers, primarily in a dwelling with deep-sleeping teenagers.)
I needed units that would be compatible with the wiring of our existing technique, and ideally ones that would accept the power leads, as wired. After some research here and elsewhere, I known as the BRK aid line and got definite specifics about the unit that would be compatible, as properly as areas within the home exactly where I both must and ought to not install units.
I ordered two units to start out with, still becoming a bit leery of my preceding expertise, and can say that installation took much less than five minutes per device.
1. Stick to the instructions for removing the plastic tab in the battery door of your new unit and pushing the button to test your new unit. If all's properly, proceed. Disregard the "locking pin" stuff unless you are in a shared dwelling and are concerned with a person walking off with your 9-volt battery. (This was the weirdest part of the directions, frankly, and this is my guess on why it really is there.) Essential: you are listening for three tones, pause, three tones, pause, four tones, pause, four tones. There is a typo at the bottom of page three of the directions, so I've just verified with BRK that the tone pattern I'm mentioning is the right a single.
two. Twist off and unplug your existing unit.
three. Back the two screws holding your collar to the ceiling so you have adequate clearance to eliminate the collar.
four. Install the new collar.
5. Install your new unit. (A wired plug is included in case you need to have to swap your current plug for the new plug.)
Fellow owners of the 4120SB will locate that the upgraded unit sets and locks into location in the ceiling a lot less difficult and significantly more reliably. Ditto with the battery door. Note that on the SC9120B, if you happen to be getting challenges with the battery door not shutting (a) there is a little trigger tab that you should really be able to push down with a fingernail and/or (b) hold the unit upside-down.
A word, please, about longevity, considering the fact that the main purpose of an alarm is your security.
1. Replace your batteries at least when a year.
two. Combo smoke/carbon monoxide units have a five-year life span, per BRK staff. Ordinary smoke alarms have a ten-year lifespan. Not replacing them inside these timespans is, in my opinion, the most harmful type of false economizing. (Note also that if you need to have assist, the BRK customer service apparently has improved greatly due to the fact the expertise of earlier reviewers of the item line. The contact I made in June could not have been extra thorough and skilled, even to dealing with the phantom beeps of my 5-year-old alarms.)
three. Whether or not or not you order this or any smoke alarm product, please do your self and your household two favors. Very first, label the plug (hidden) side of your units with the install and replace dates. Second, modify your batteries at least once a year.
BTW, I gave the unit a 4 rather than a 5 considering that though the battery door and twist-on/twist-off problems are much less irritating than on the earlier generation, they still do exist.

I have a rental property and this year, the city's new regulation required installation of these detectors. A single of the detectors malfunctioned and the terrified tenant named 911, who proceeded to do over 1000 dollars in property harm.
I subsequently identified out that even the EPA has admitted that various of the CO detectors they tested had been unreliable, and either went off at as well low of a level or did not sound at dangerously high levels.
According to their web page, the best way to preserve the building's inhabitants protected is to have fuel-burning appliances effectively installed and maintained by licensed pros to make confident that the gases (like CO) are vented appropriately.
I ended up undertaking a lot of analysis associated to CO as a outcome. I have the documentation from the Fire Division indicating the levels that they measured (WAY Beneath the low threshold on the detector) even close to the detector.
I knew that a problem was unlikely because the heat wasn't even ON at the time.
Nevertheless, they broke into two apartments, destroying irreplaceable historic doors and frames. Even the fire chief told me that if I have a challenging-wired smoke detector/CO detector combo, I need to get it replaced as they have had false alarms with that kind of detector. But as mentioned on the EPA internet site, and evidenced by a large number of other evaluations on Amazon and so on, CO detection is apparently in it's infancy and I am surprised that these detectors are even becoming sold, substantially less expected by law.
Regrettably, according to my lawyer, it's way more difficulty than it really is worth to sue the city, so I had to suck up the CONSIDERABLE expenditures myself. Not to mention my poor tenant, who was (unharmed of course) but anxious.
I am so ANGRY, but the only thing I can do apparently is to WARN other persons about these alarms. If you have a single in your house and there's a false alarm, that is one thing. But if a tenant has a false alarm, you are vulnerable in a large number of different methods.
The WORST issue about this kind of alarm is that if the CO portion malfunctions, you've lost your smoke alarm as properly. In addition, since it is installed high on the ceiling, if it false alarms, you have to get on a ladder to turn the point off.
I would not advocate the very first alert smoke/CO alarm to Any individual.
First Alert SC9120B Hardwire Combination Smoke/Carbon Monoxide Alarm with Battery Backup

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