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Item Description
Amazon.com Product Description
The BRK hardwire mixture smoke and carbon monoxide alarm detects two hazards with one effortless 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 cause carbon monoxide accumulation. According to the Consumer Product Security Commission (CPSC), at least 1 CO alarm really should be installed near a home's sleeping area.
The BRK SC9120 hardwire combination smoke and CO alarm with battery backup consists of these functions:
- Rapid plug-in power connector for quick 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 1 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 extra powerful at detecting flaming fires which consume combustible materials rapidly and spread promptly.
- 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 thoughts through power outages.
What is in the Box One mixture smoke and CO alarm, one 9-volt battery, and user's manual
Customer Evaluations
Our residence was wired for smoke detectors -- particularly the rather cheesy BRK 4120SB, which delights in false "low power" chirping. My aim was to replace the ones in the bedrooms with mixture 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, particularly in a property 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. Right after some study right here and elsewhere, I referred to as the BRK support line and got definite details about the unit that would be compatible, as nicely as locations within the property exactly where I each must and should certainly not install units.
I ordered two units to get started with, nevertheless getting a bit leery of my prior expertise, and can say that installation took much less than five minutes per device.
1. Stick to the directions 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 nicely, proceed. Disregard the "locking pin" stuff unless you are in a shared dwelling and are concerned with somebody walking off with your 9-volt battery. (This was the weirdest element of the instructions, frankly, and this is my guess on why it is there.) Very important: you are listening for three tones, pause, 3 tones, pause, 4 tones, pause, 4 tones. There is a typo at the bottom of page three of the instructions, so I've just verified with BRK that the tone pattern I'm mentioning is the correct a single.
2. Twist off and unplug your current unit.
three. Back the two screws holding your collar to the ceiling so you have sufficient clearance to eliminate the collar.
four. Install the new collar.
5. Install your new unit. (A wired plug is included in case you have to have to swap your existing plug for the new plug.)
Fellow owners of the 4120SB will obtain that the upgraded unit sets and locks into place in the ceiling a lot less difficult and a lot more reliably. Ditto with the battery door. Note that on the SC9120B, if you happen to be having concerns with the battery door not shutting (a) there is a small 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, because the primary goal of an alarm is your safety.
1. Replace your batteries at least as soon as a year.
two. Combo smoke/carbon monoxide units have a 5-year life span, per BRK staff. Common smoke alarms have a ten-year lifespan. Not replacing them inside these timespans is, in my opinion, the most hazardous type of false economizing. (Note also that if you need to have support, the BRK customer service apparently has improved greatly since the expertise of earlier reviewers of the product line. The call I created in June could not have been even more thorough and qualified, even to dealing with the phantom beeps of my 5-year-old alarms.)
3. Whether or not you purchase this or any smoke alarm product, please do yourself and your family members two favors. Initially, label the plug (hidden) side of your units with the install and replace dates. Second, adjust your batteries at least once a year.
BTW, I gave the unit a four rather than a five simply because although the battery door and twist-on/twist-off issues are much less irritating than on the earlier generation, they nonetheless do exist.
I have a rental property and this year, the city's new regulation needed installation of these detectors. One of the detectors malfunctioned and the terrified tenant called 911, who proceeded to do over 1000 dollars in property harm.
I subsequently located out that even the EPA has admitted that quite a few of the CO detectors they tested were unreliable, and either went off at as well low of a level or did not sound at dangerously high levels.
According to their webpage, the most beneficial way to keep the building's inhabitants secure is to have fuel-burning appliances appropriately installed and maintained by licensed specialists to make positive that the gases (including CO) are vented adequately.
I ended up doing a lot of study associated to CO as a result. I have the documentation from the Fire Division indicating the levels that they measured (WAY Below the low threshold on the detector) even close to the detector.
I knew that a trouble was unlikely considering that 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 difficult-wired smoke detector/CO detector combo, I should certainly get it replaced as they have had false alarms with that sort of detector. But as mentioned on the EPA website, and evidenced by quite a few other critiques on Amazon and so on, CO detection is apparently in it is infancy and I'm shocked that these detectors are even getting sold, considerably much less required by law.
Regrettably, according to my lawyer, it's way more difficulty than it's worth to sue the city, so I had to suck up the CONSIDERABLE expenses 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 men and women about these alarms. If you have one in your residence and there's a false alarm, that's one particular thing. But if a tenant has a false alarm, you are vulnerable in a lot of completely different methods.
The WORST point about this type of alarm is that if the CO part malfunctions, you have lost your smoke alarm as nicely. In addition, since it is installed high on the ceiling, if it false alarms, you have to get on a ladder to turn the issue off.
I would not recommend the very first alert smoke/CO alarm to Any one.
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