NY Home Sensors: BRK Brands 9120 Hardwire Smoke Alarm

Price : $9.14
List Price : ~~$15.49~~
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Item Description

Amazon.com Product Description
Introducing the revolutionary BRK 9120 series smoke alarms which have been redesigned from the ground up. They install quicker, execute greater, and are even smarter than before. All of these improvements aid cut down nuisance alarms and save you time and cash. BRK Electronics smoke alarms are created to be simple to install, effortless to keep, and good quality-engineered for years of practically maintenance-zero cost service.
The AC-powered BRK Hardwire Smoke Alarm includes these attributes:

Ionization sensor which aids detect rapidly flaming fires that consume combustible materials quickly.
120-volt AC inter-connectable with up to 12 smoke alarms and six of a combination of UL listed BRK heat alarms and RM3 relays (maximum 18 devices). Smoke and CO alarms need to be interconnected separately per NFPA 72 and UL 217.
Latching alarm indicator which automatically identifies which unit initiated the alarm.
Sensible technologies to lessen 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.
Ideal mount technique like a gasketless base for easy installation and new mounting bracket that keeps the alarm secure over a wide rotation range to let for ideal alignment.
Mounting bracket lock for tamper resistance.
Dust cover to keep unit clean through construction.
ten-year limited warranty.

All BRK Electronics smoke alarms meet UL 217 common and are listed with the California State Fire Marshal. They use the new UL mandated repeating 85-decibel alarm horn pattern. ten-year restricted warranty. This unit is approved for sale in Oregon following new revisions on law HB2586.--Bree Norlander
What's in the Box One smoke alarm and user's manual

Consumer Evaluations

These BRK smoke alarms have issued alarms twice now, which lasted a number of hours every and resulted in lost function time. Initially, two of these would beep each and every minute and absolutely nothing I attempted would cease it, so I had them replaced, and then these seemed to be OK, but almost just about every night we would hear a 1 second alarm. Then 2 weeks later, the alarms went off steady and absolutely nothing we attempted would silence or reset them. We even had the gas corporation come out to check the gas applicances for CO2, because 2 of the units also had the CO2 detectors built in, but every thing checked out fine, so I just started unplugging the units until the alarms stopped. A handful of days later, the remaining three alarms that I still had connected began a further false alarm and ultimately stopped. I don't have time to place up with troubles like this, and it can result in not even believing your smoke alarms, when it can be a genuine fire! I only purchased these mainly because they were plug compatible with the Very first Alert, but I will have to rewire the plug and buy a better top quality brand.

My home came wired with about 12 of these with the battery back-up. Given that the 9 volt battery is supposed to power the whole system when electricity is lost they need to be replaced pretty often. They test at about 8.25 volts when required to be replaced. I have purchased a couple of these non-battery units to replace the ones in the cathedral ceiling that calls for a ladder to replace and will invariably start chirping at 2am on a cold winters morning. I have also replace the one particular in our unheated attic which suffers the identical fate.
As long as I can get to the unit I will stick with the battery back-ups but for those tough to reach places these electric models as a greater choice.