Rated 4.3 out of 5 by 114
Rated 1.0 out of 5.0 by sierra1194 Shelf Life for SC9120B First Alert Combo Smoke and Carbon Monoxide Alarm
Be aware and forewarned when purchasing this product of the manufacture date on the back of the alarm unit. Customer service at First Alert (800-323-9005) tells me that there is a shelf life of only 5 years on units manufactured before May 2011.
We have apartment buildings and In January 2016, we purchased eight units from Home Depot for replacement on units that were starting to chirp. The units we purchased had a stamped manufacturing date of April 25, 2011. Here it is August 2016 and we are having to replace all the units we just recently replaced as all the new units started chirping and will not cease chirping even after replacing with new batteries, twice (thinking perhaps the batteries were defective). The batteries are fine.
It is the units that are at the end of their shelf life so I am told by customer service at First Alert; and unless I can produce the receipt, First Alert customer service cannot/will not assist me. 2015 taxes were filed and receipts are with accountant.
I feel that First Alert should have not only the manufacture date on the back, BUT, should also have the expiration date stamped alongside. Had we known these units have a shelf life/expiration dates, we would not be buying in bulk and replacing expired units with more expired (but new) units. I am also disappointed that the big box stores are selling expired merchandise that should be pulled off the shelves!!!
August 16, 2016
Rated 1.0 out of 5.0 by Truc Notsogud
I forgot, my bad.... dont buy combo things that are better left separate. If you buy a Smoke and CO detector and the CO detector goes bad, you have to buy a new expensive combo unit even though only half went bad.
October 23, 2016
Rated 5.0 out of 5.0 by ElJay Replacement part was a direct fit. Date of manufacture was within 3 weeks of shipment and installed battery was less than6 months old. Store service was done rapidly and with a smile.
October 25, 2016
Rated 5.0 out of 5.0 by Nana Smoke
These were replacements for 2 that stopped working after 4 years. Wish they were less expensive.
September 24, 2016
Rated 3.0 out of 5.0 by Wolf smoke Alarm
I actually have not installed this product.
Lacking confidence in my electrical knowledge, I tried to follow the installation instructions, but here is where the main problem is.
The instruction sheet print was so small and the diagrams so unclear that I could not read it.
I would suggest that less paper space be used to print the instructions in different languages and use the space for larger print and clearer diagrams, or use more paper.
That is the reason why I have not installed the alarms.
August 29, 2016
Rated 5.0 out of 5.0 by Nativelandscape Replaced same units
My old units were ready to be replaced and we were happy with them and decided to use the same ones
September 27, 2016
Rated 5.0 out of 5.0 by JT49 BRK Smoke & Carbon Monoxide Alarm Perfect Solution!
I replaced two BRK Smoke Alarms with two BRK Smoke & Carbon Monoxide Alarms in our home. They were compatible with the existing multi-alarm system and matched perfectly in the ceiling. Great solution to adding carbon monoxide alarm capability to our home. The removal of the old smoke alarms and installation of the two new smoke & carbon monoxide alarms was "plug and play"!
April 12, 2016
Rated 3.0 out of 5.0 by Bandiamara Replacement Smoke Alarms
We had to replace our identical alarms with these because they are all wired together. Unfortunately, the old ones lasted only six years. The new ones have a 10 year warranty. Therefore save your receipts. Other than that they function well.
September 1, 2016