First Alert SA511CN2-3ST Interconnected Wireless Smoke Alarm with Voice Location vs Kidde i9050

The photoelectric sensor inside is quick to detect slow, smoldering fires. With a single silenced test button on the Fernley alarm, you can easily per...

One in each living space, one outside of each bedroom, one in the kitchen and some in the basement, including the laundry room were essential. Don’t forget the CO2 detectors! And plug them in low because CO2 is a heavy gas.

Another worry.. if they continue to give false alarms we may eventually be desensitized to react fast IF THERE REALLY IS A FIRE. If it wasn't beyond the return window I would definitely send these back for replacements

I have better quality smoke & carbon monoxide alarms installed. Ipurchased these alarms to fillon the gap in coverage.

This is nice when you have 8 of these going off in your two story house. I have not placed any alarms in my kitchen, however one of these is in the adjacent room. Over the course of a year, I have had probably 2 times that the alarms have gone off from bad cooking. For the most part false alarms have not been an issue

Replaced all the smoke alarms in our house. I wish there weren't exterior blinking red lights that I see when going to sleep.

So batteries need to be changed yearly with most detectors anyway. Even wired detectors have batteries in them and need to be replaced. I am replacing my Smoke/Carbon Monoxide OneLink with new Smoke/Carbon Monoxide OneLinks now that the detectors told me they are malfunctioning, manufacturer date listed on back of detector. 7 years and 4 months after manufacturing, not bad

I wanted to order specific replacement CO detectors at the same time and take full advantage of the discount, but the website doesn't carry ALL of the Kidde products -- not-so-good.