Last Updated: November 25, 2018 (Refresh Now)
First Alert BRK 9120B Hardwired Smoke Alarm with Battery Backup
Last Updated: November 25, 2018 (Refresh Now)
9.3
SCORE
/10
Total Reviews
987
Old Reviews
676
Unverified
0
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Review Analysis - 311 recent, verified reviews
Detailed Mode
Setup
74easy, install, installation, installed, alarm
+99%
-1%
" ... 2 minute installation. ... "
" ... Easy to install. ... "
" ... Simple to install. ... "
" ... Easy to install. ... "
" ... Easy to install. ... "
" ... I ordered 3 units to try them out and they were so easy to install. ... "
" ... Installed 8 in less than 30 minutes. ... "
" ... Install was easy. ... "
Ease of Use
40easy, install, simple, super, replace
+100%
" ... Easy to install. ... "
" ... Simple to install. ... "
" ... Very quick & easy! ... "
" ... Easy to install. ... "
" ... Easy to install. ... "
" ... Install was easy. ... "
" ... easy to replace, price point is excellent ... "
" ... Easy install, works great on test. ... "
Product Reliability
32replaced, 10 years, smoke, detectors, units
+100%
" ... Replacement for one that stopped working. ... "
" ... Works great, no problems! ... "
" ... I need to replace all 10 of my smoke detectors as they are 15 years old. ... "
" ... Once one goes, they all start to follow suit over a matter of months. ... I purchased a supply to have on hand (as they typically start to fail at 2am) and they have all worked perfectly. ... "
" ... Replaced three old detectors with these. ... "
" ... exact replacement for old one that died after 5 yrs. ... "
" ... They are working good. ... "
" ... worked perfectly as replacements. ... "
Price
20reasonably, priced, excellent, good quality, money
+100%
" ... excellent product and priced right ... "
" ... Well worth the money. ... "
" ... Great quality and price. ... "
" ... nice product, good price ... "
" ... Easy to wire and reasonably price. ... "
" ... great product at a great price ... "
" ... Better than the original and an excellent price. ... "
" ... Price is awesome. ... "
Delivery
20arrived, promised, delivery, arrived on time, quick
+100%
" ... Package was appropriate and delivery as promised. ... "
" ... Arrived on time. ... "
" ... Excellent quality and fast shipment ... "
" ... 2nd one i've ordered. ... "
" ... This is exactly what I wanted, it was fairly priced and delivered quicker than anticipated. ... "
" ... Works great, thank you fast shipping ... "
" ... Delivered on time, great quality, good price ... "
" ... Product arrived as advertised. ... "
Fit
16old, old ones, screws, mounting, mount
+94%
-6%
" ... Fit the original mounting plates fine. ... "
" ... Fits my old one and isnt beeping at me all the time ... "
" ... They fit where the old ones had been perfectly, so were exactly what we needed. ... "
" ... Fit my wired system perfectly and includes a backup battery. ... "
" ... Fit into the existing bracket on the ceiling! ... "
" ... fit the old wiring harness and mount so took less than 1 min. ... "
" ... Perfect fit and replacement for the one installed at the time of the building of my home. ... "
" ... I was replacing an older model of this in my house, and it fits just right and installs perfectly. ... "
Clock
13alarm, replacement, replace, alarms, false alarms
+92%
-8%
" ... This smoke alarm purchased to replace original unit in my home. ... "
" ... This was a replacement for outdated smoke alarms. ... "
" ... Easy to replace a set of old alarms. ... "
" ... This smoke alarm is soooo easy to install. ... "
" ... I bought this to replace a missing smoke alarm in my house. ... "
" ... This smoke alarm arrived on time and as advertised. ... "
" ... This smoke alarm is working just great !!! ... "
" ... Good quality smoke alarm. ... "
Cables
13wiring, connector, matched, wiring harness, wires
+100%
" ... the wire connections were the same, so this was easy to replace ... "
" ... They were easy to hard wire and install. ... "
" ... this means you have to strip wires and install the connector that comes with this one. ... "
" ... Extremely easy to change out the wiring harness and baseplate, it's just a matter of twisting on some wire nuts and screws. ... "
" ... Plug ins matched exactly to my he old ones! ... "
" ... Plugged right into my home wiring. ... "
" ... this is a good replacement for all the old BRKA models I just remove the wire and plug directly in seems to work just fine super easy to install ... "
" ... Purchased to replace older model and they use the same wiring. ... "
Battery Life
12batteries, smoke, chirping, 9v, years
+83%
-17%
" ... Batteries included a plus. ... "
" ... I’ll order more of these along with Energizer 10yr lithium 9V batteries, and won’t need to think about them for another 10 years (aside from testing, of course.) ... "
" ... 10 year battery! ... "
" ... Fit my wired system perfectly and includes a backup battery. ... "
" ... comes with new battery. ... "
" ... great product a life saver ... "
" ... Just hope it lasts longer than the last one. ... "
" ... They are effective, as long as you change the batteries for the battery back up. ... "
Marketplace
11works as expected, timely, stores, seller, replacement
+100%
" ... Works as expected. ... "
" ... It was cheaper to buy it here on Amazon versus the store, so I did. ... "
" ... I recommend this seller. ... "
" ... Item exactly as advertised. ... "
" ... Came as desdrigedl ... "
" ... Direct replacement for an older model. ... "
" ... I was happy that I could get via Amazon, as I could not get them in retail stores. ... "
" ... Is exactly as described. ... "
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Specifications
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