Best Carbon Monoxide Detector , Expert Reviews Needed

I have researched about the best carbon monoxide detector for the past few days because I want to upgrade my home safety system. I read reviews on The New York Times, Consumer Reports, and CNET, and they all seem to agree that these two stand out the most:

X-Sense Smart Smoke Detector Carbon Monoxide Detector Combo

https://www.amazon.com/X-Sense-Battery-Operated-Interconnected-Combination-SC07-MR51/dp/B0D73KDSXD?th=1

Kidde Smoke & Carbon Monoxide Detector

https://www.amazon.com/Kidde-Monoxide-Detector-10-Year-Indicators/dp/B0DDWDDGDS

Both are packed with smart features like voice alerts, smartphone notifications, CO detection, and the ability to pinpoint exactly which room is affected. The reviews are excellent—but now I’m stuck trying to decide which one would best suit my home setup.
In my house, I have a mix of hardwired smoke detectors already installed, but some rooms don’t have wiring and would need a battery-powered option. I’m also wondering about long-term maintenance, reliability, and which type might be more convenient overall.
So if anyone has experience with either model, I’d really appreciate your advice!
Should I go battery-powered or wired? Any tips or recommendations would be super helpful.
Thanks in advance!

Curious… why do you need to measure co?

because i care of my health

Then there’s a buttload of other more pressing matters to measure:
Air particles;
tVox;
Dew point;
Co2;
Heat index;
Mold risk factor;
….
You don’t even output co, unless you have a fireplace or gas, which you could conversely replace with electric solutions instead…

Would you be willing to go a bit more in detail? I’m not “arguing “ against you, mind you. Just trying to understand, to decide if I should add a CO to my own sensor :slight_smile:

yes it would be helpful for kitchen

Then you don’t want CO, you want CO2, volatile organic compounds, particles and the like.

A CO sensor is a good safety precaution when using a device with an open flame, because if combustion isn’t working properly, carbon monoxide, an odorless and often deadly gas, is produced. It’s particularly useful near a stove, boiler, or gas heater.

I have a CO sensor in the same room as my boiler. It’s integrated into my openHAB system via Z-Wave.

I’m not familiar with the two sensors you mentioned. Do you want to integrate them into openHAB?

I didn’t notice anything in the descriptions that would tell me if they’re compatible with Z-Wave, Matter, or Zigbee, for example.

I have installed a “Netatmo Carbon Monoxide Sensor” and integrated it into OpenHAB.

If you have any combustion source in the house (gas stove, furnace, dryer, woodstove, garage connected to house, etc.) than it is incredibly important to have CO detection. It’s not called the silent killer for no reason!

It’s not just a “this might make you sick over time” thing, like VOCs (although it can be, at lower levels). It can also be an acute danger much like fire, except invisible, silent, odorless…. And shockingly common when old furnaces start to have leaks.

No arguments there @Chad_Hadsell , but that’s why I asked about it. I’m in a fully electric household. Nothing here produces CO. Carbon monoxide can be a problem if you have stoves or fireplaces but that’s a specific niche, with more and more people switching to heat pumps the conversion needs more context nowadays.
Nevertheless I do have a CO and CO2 sensor in the office just in case >.>