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Product Description
Amazon.com Item Description
The BRK hardwire mixture smoke and carbon monoxide alarm detects two hazards with one particular hassle-free unit. Carbon monoxide (CO) is a colorless, odorless, deadly gas. It can be emitted by sources such as 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 Item Security Commission (CPSC), at least a single CO alarm must be installed near a home's sleeping area.
The BRK SC9120 hardwire combination smoke and CO alarm with battery backup consists of these functions:
- Swift plug-in power connector for hassle-free 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 much more successful at detecting flaming fires which consume combustible supplies quickly 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 will allow 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.
What is in the Box One particular combination smoke and CO alarm, one 9-volt battery, and user's manual
Customer Evaluations
Our property was wired for smoke detectors -- specifically 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 risks, particularly in a home with deep-sleeping teenagers.)
I required units that would be compatible with the wiring of our current program, and ideally ones that would accept the power leads, as wired. Following some analysis here and elsewhere, I named the BRK assist line and got definite details about the unit that would be compatible, as properly as areas within the residence exactly where I each should and should not install units.
I ordered two units to start off with, nonetheless being a bit leery of my previous experience, and can say that installation took much less than five minutes per device.
1. Adhere 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 an individual walking off with your 9-volt battery. (This was the weirdest part of the instructions, frankly, and this is my guess on why it is there.) Imperative: you are listening for 3 tones, pause, 3 tones, pause, 4 tones, pause, 4 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 am mentioning is the appropriate a single.
two. Twist off and unplug your existing unit.
three. Back the two screws holding your collar to the ceiling so you have enough clearance to remove the collar.
four. Install the new collar.
five. Install your new unit. (A wired plug is included in case you require to swap your current plug for the new plug.)
Fellow owners of the 4120SB will obtain that the upgraded unit sets and locks into location in the ceiling considerably easier and more reliably. Ditto with the battery door. Note that on the SC9120B, if you're getting problems with the battery door not shutting (a) there is a tiny trigger tab that you will need to be able to push down with a fingernail and/or (b) hold the unit upside-down.
A word, please, about longevity, since the primary purpose of an alarm is your safety.
1. Replace your batteries at least once a year.
2. Combo smoke/carbon monoxide units have a 5-year life span, per BRK staff. Frequent smoke alarms have a 10-year lifespan. Not replacing them within these timespans is, in my opinion, the most hazardous sort of false economizing. (Note also that if you have to have assist, the BRK customer service apparently has improved tremendously given that the experience of earlier reviewers of the item line. The contact I produced in June could not have been much more thorough and specialist, even to dealing with the phantom beeps of my 5-year-old alarms.)
3. Regardless of whether or not you buy this or any smoke alarm item, please do oneself and your household two favors. Initial, label the plug (hidden) side of your units with the install and replace dates. Second, adjust your batteries at least when a year.
BTW, I gave the unit a four rather than a five for the reason that even though the battery door and twist-on/twist-off concerns are less irritating than on the earlier generation, they nonetheless 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 lots of of the CO detectors they tested had been unreliable, and either went off at also low of a level or did not sound at dangerously high levels.
According to their website, the most effective way to preserve the building's inhabitants protected is to have fuel-burning appliances appropriately installed and maintained by licensed experts to make sure that the gases (which includes CO) are vented correctly.
I ended up undertaking a lot of analysis related to CO as a outcome. I have the documentation from the Fire Department indicating the levels that they measured (WAY Below the low threshold on the detector) even close to the detector.
I knew that a issue was unlikely considering the fact that the heat wasn't even ON at the time.
Nonetheless, they broke into two apartments, destroying irreplaceable historic doors and frames. Even the fire chief told me that if I have a tough-wired smoke detector/CO detector combo, I should really get it replaced as they have had false alarms with that type of detector. But as mentioned on the EPA website, and evidenced by numerous other reviews on Amazon and so on, CO detection is apparently in it is infancy and I'm surprised that these detectors are even becoming sold, a lot much less required by law.
Unfortunately, according to my lawyer, it really is a lot more difficulty than it really is 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 factor I can do apparently is to WARN other people today about these alarms. If you have one in your house and there is a false alarm, that's 1 thing. But if a tenant has a false alarm, you are vulnerable in lots of diverse methods.
The WORST factor about this type of alarm is that if the CO element malfunctions, you've lost your smoke alarm as well. In addition, considering the fact that 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 advise the first alert smoke/CO alarm to Any one.
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