Bought 3 of these to replace a very old smoke detectors that were built-in to our very old alarm system. Very easy to install & set-up (already had a Nest account). So far they are great. I like how they are both smoke & carbon monoxide detectors. I like how they are motion sensitive & can work as night lights. But best of all I like how they all work together & are connected to your smart phone app. Totally worth the price for feeling safe.

This smoke detector is modern, sleek, practical, and integrates quite seamlessly within our ecosystem of Nest home products. Only gripe is the price. $150 for a smoke/CO detector is quite hefty but the key feature to appreciate is to be alerted on my smartphone in the situation where I am not home. You won’t get that functionality with a regular standard smoke detector.

I lost two birds for Carbon monoxide and smoke buildup at home during winter months . Sensitive product , several times it proved its efficiency. Very easy to install and operate . Happy to have this item at home .

Works great! Easy setup! Test mode is nice! Comes with a night light but doesn’t have much use because you gotta install 12 inches from ceiling to work right.

Very easy to setup. Has worked well so far. We really like the night light feature for the path lighting.