First Alert SA9120BPCN Hardwired Smoke Detector with Battery Backup

Worked great for the first 11 months then started going off non stop. Changed the battery, vaccumed it, blew it out with compressed air, and it still keeps going off. We ended up replacing with a different brand. We have a bunch of wireless ones from them with no issues but this hardwired one just didn't last.

Stupid and overly complicated. I just want an alarm with a battery, can't seem to find one of those at target. I couldn't even set it up, too many wires and poorly written instructions. I don't get the reviews that said this was easy. such a waste of money.

Can’t tell you how many times it has woke me up in the middle of the night to false alarms. It reached its last alarm when it went off at 4 am after a very long day, I have 4 more of these (older model) in my home, they are fine the new ones are not! Avoid at all cost unless you like getting woken up in the middle of the night to a false alarm.

Easy replacement of same model that were 12 years old. Used existing base and wires. Comes with batteries. I hope they continue making these.

It works just fine. My first time replacing our smoke alarm and was easy.

It was perfect, come complete with everything I needed.

It was pretty easy to install.

Bought to replace ones that died after five years. Have been looking for this exact size and style. Fit perfectly in the previous holder. Just plugged it in. Needed two more so will buy again when they go back on sale.

false alarm a couple times during the night!

I was invited to join a First Alert Campaign in which I was sent a complimentary set of 6 Smoke Alarms through Smiley360. These Smoke Alarms are hard-wired, with a 9 Volt battery backup. Installation is simple. The alarm is attached to the electrical wiring in a home where a junction box is located. Once attached to the wiring, a plastic sleeve is to be removed that allows the 9 volt battery to come into contact with the positive and negative posts. If the battery is removed, a beep will sound and beep and beep until the battery is put back in, or it needs replaced due to having a dead battery. I love this because I know most people forget to change their battery routinely and it reminds them to replace the battery.

I received a sample from Smily360 in turn for my honest feedback. I'm always looking for ways to keep my family safe. First Rate fire alarms are a good quality way to keep them safe. Installation of the fire alarms was quick and easy. The design fit the decor of the rooms I put them in.

Items were shipped super fast. Each piece individually packed. Handyman installed quickly. Thank you

Great service and easy install. Will buy more!

I replaced all 6 of my smoke detectors in under one hour. The various adapters that came with this smoke alarm makes replacing existing alarms a breeze. Just pick the right one and it's plug and play.

Easy install!!! Fast fast fast!!!