Price : $35.35
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Product Description
Amazon.com Item Description
The BRK hardwire mixture smoke and carbon monoxide alarm detects two hazards with 1 hassle-free unit. Carbon monoxide (CO) is a colorless, odorless, deadly gas. It can be emitted by sources like 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 Security Commission (CPSC), at least 1 CO alarm really should be installed near a home's sleeping location.
The BRK SC9120 hardwire mixture smoke and CO alarm with battery backup consists of these attributes:
- Speedy 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 a single 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 efficient at detecting flaming fires which consume combustible supplies quickly and spread speedily.
- 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 thoughts during power outages.
What is in the Box One particular combination smoke and CO alarm, one particular 9-volt battery, and user's manual
Consumer Critiques
Our residence was wired for smoke detectors -- especially 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, primarily in a dwelling with deep-sleeping teenagers.)
I required units that would be compatible with the wiring of our existing system, and ideally ones that would accept the power leads, as wired. Immediately after some research here and elsewhere, I named the BRK support line and got definite data about the unit that would be compatible, as well as areas inside the home where I each must and must not install units.
I ordered two units to start out with, nevertheless getting a bit leery of my previous experience, and can say that installation took less than 5 minutes per device.
1. Comply with 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 a person walking off with your 9-volt battery. (This was the weirdest part of the instructions, frankly, and this is my guess on why it really is there.) Very important: you are listening for three tones, pause, 3 tones, pause, 4 tones, pause, four tones. There is a typo at the bottom of page 3 of the instructions, so I've just verified with BRK that the tone pattern I am mentioning is the correct one particular.
two. Twist off and unplug your present unit.
three. Back the two screws holding your collar to the ceiling so you have adequate clearance to take away the collar.
4. Install the new collar.
5. Install your new unit. (A wired plug is included in case you need to swap your existing plug for the new plug.)
Fellow owners of the 4120SB will come across that the upgraded unit sets and locks into spot in the ceiling significantly easier and way more reliably. Ditto with the battery door. Note that on the SC9120B, if you are getting challenges with the battery door not shutting (a) there is a little trigger tab that you ought to be in a position to push down with a fingernail and/or (b) hold the unit upside-down.
A word, please, about longevity, because the major goal 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. Ordinary smoke alarms have a ten-year lifespan. Not replacing them within these timespans is, in my opinion, the most harmful sort of false economizing. (Note also that if you have to have help, the BRK client service apparently has enhanced greatly considering that the encounter of earlier reviewers of the item line. The call I produced in June could not have been significantly more thorough and qualified, even to dealing with the phantom beeps of my five-year-old alarms.)
3. Regardless of whether or not you purchase this or any smoke alarm item, please do yourself and your family members two favors. First, label the plug (hidden) side of your units with the install and replace dates. Second, adjust your batteries at least as soon as a year.
BTW, I gave the unit a 4 rather than a 5 mainly because even though the battery door and twist-on/twist-off matters are less irritating than on the earlier generation, they still 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 various of the CO detectors they tested were unreliable, and either went off at also low of a level or did not sound at dangerously high levels.
According to their internet site, the very best way to maintain the building's inhabitants secure is to have fuel-burning appliances correctly installed and maintained by licensed specialists to make positive that the gases (including CO) are vented correctly.
I ended up undertaking a lot of investigation associated to CO as a result. I have the documentation from the Fire Division indicating the levels that they measured (WAY Beneath the low threshold on the detector) even near the detector.
I knew that a problem was unlikely given 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 get it replaced as they have had false alarms with that sort of detector. But as mentioned on the EPA webpage, and evidenced by a lot of other reviews on Amazon and so on, CO detection is apparently in it is infancy and I am surprised that these detectors are even being sold, considerably less expected by law.
Unfortunately, according to my lawyer, it is a lot 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 issue I can do apparently is to WARN other folks about these alarms. If you have 1 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 distinctive 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, due to the fact 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 suggest the initial alert smoke/CO alarm to Anybody.
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