Price : $35.35
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Item Description
Amazon.com Item Description
The BRK hardwire mixture smoke and carbon monoxide alarm detects two hazards with one particular very simple 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 1 CO alarm should be installed near a home's sleeping region.
The BRK SC9120 hardwire combination smoke and CO alarm with battery backup includes these attributes:
- Swift plug-in power connector for straightforward 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 even more successful at detecting flaming fires which consume combustible supplies quickly and spread immediately.
- Microprocessor controlled for fewer nuisance alarms.
- Single test/silence button which each silences a non-threatening alarm or low battery warning and permits 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 in the course of power outages.
What is in the Box One mixture smoke and CO alarm, a single 9-volt battery, and user's manual
Customer Critiques
Our property was wired for smoke detectors -- particularly the rather cheesy BRK 4120SB, which delights in false "low power" chirping. My objective 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 risks, specially in a residence with deep-sleeping teenagers.)
I necessary units that would be compatible with the wiring of our present method, and ideally ones that would accept the power leads, as wired. After some research right here and elsewhere, I known as the BRK assist line and got definite information and facts about the unit that would be compatible, as nicely as locations within the household where I both really should and should certainly not install units.
I ordered two units to commence with, nonetheless getting a bit leery of my preceding expertise, and can say that installation took 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 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.) Imperative: you are listening for three tones, pause, 3 tones, pause, 4 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 am mentioning is the correct a single.
2. Twist off and unplug your existing unit.
three. Back the two screws holding your collar to the ceiling so you have sufficient clearance to take away the collar.
4. Install the new collar.
5. Install your new unit. (A wired plug is included in case you desire 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 place in the ceiling considerably much easier and additional reliably. Ditto with the battery door. Note that on the SC9120B, if you are having troubles with the battery door not shutting (a) there is a tiny trigger tab that you must 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 goal of an alarm is your security.
1. Replace your batteries at least once a year.
2. Combo smoke/carbon monoxide units have a 5-year life span, per BRK staff. Normal smoke alarms have a 10-year lifespan. Not replacing them inside these timespans is, in my opinion, the most harmful sort of false economizing. (Note also that if you want help, the BRK client service apparently has enhanced tremendously because the expertise of earlier reviewers of the product line. The contact I created in June could not have been way more thorough and expert, even to dealing with the phantom beeps of my five-year-old alarms.)
3. Whether or not you shop for this or any smoke alarm item, please do your self and your family two favors. Initially, 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 four rather than a 5 given that when the battery door and twist-on/twist-off troubles are much less irritating than on the earlier generation, they nevertheless do exist.
I have a rental property and this year, the city's new regulation expected installation of these detectors. One particular of the detectors malfunctioned and the terrified tenant referred to as 911, who proceeded to do over 1000 dollars in property damage.
I subsequently discovered out that even the EPA has admitted that a number of of the CO detectors they tested had been unreliable, and either went off at too low of a level or did not sound at dangerously high levels.
According to their web-site, the very best way to maintain the building's inhabitants protected is to have fuel-burning appliances effectively installed and maintained by licensed professionals to make certain that the gases (which includes CO) are vented properly.
I ended up doing a lot of investigation connected to CO as a outcome. 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 difficulty was unlikely since 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 tough-wired smoke detector/CO detector combo, I need to get it replaced as they have had false alarms with that sort of detector. But as mentioned on the EPA web-site, and evidenced by quite a few other critiques on Amazon and so on, CO detection is apparently in it's infancy and I'm surprised that these detectors are even being sold, considerably less required by law.
Sadly, according to my lawyer, it is more trouble than it 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 point I can do apparently is to WARN other people today about these alarms. If you have 1 in your residence and there's a false alarm, that is one particular factor. But if a tenant has a false alarm, you are vulnerable in a number of distinct approaches.
The WORST thing about this kind of alarm is that if the CO portion 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 point off.
I would not advise the very first alert smoke/CO alarm to Anyone.
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