Carbon Monoxide Detectors,Plug in CO and Natural Gas Detector, Combination Gas & Carbon Monoxide Detectors for Travel with Temperature Humidity Display, 4 in 1 CO & Gas Detector for Home/Travel

I was very disappointed with this detector. The plug-in feature is convenient in theory, but it doesn’t seem reliable — it gave false alarms multiple times and sometimes didn’t detect gas properly. The temperature and humidity display is gimmicky and doesn’t feel accurate. For something so important as safety, I expected much better quality and consistency.

I recently purchased this portable Gas & Carbon Monoxide Detector and I’m very happy with it. The LCD display is bright and easy to read, showing gas and CO levels, temperature, and humidity all at once. It’s compact, lightweight, and perfect for both home use and travel. I like that it plugs directly into the wall, so there’s no need to worry about replacing batteries. The alarm is loud and clear, which gives me peace of mind knowing I’ll be alerted quickly in case of danger. Overall, it’s a reliable, easy-to-use safety device that I highly recommend.

I bought this detector to make our home safer. It's easy to install and can start working immediately once plugged in. The digital screen, however, is a bit blurry.

In the industrial scene, the concentration of carbon monoxide exceeds the standard during welding, and the equipment also fails to report, which leads to dizziness and discomfort of workers and seriously threatens personal safety.

I expected a new item to be received, but instead I received an open box item. Otherwise it seems to be working so I'm not entirely sure why it would be an open box in the first place. Regardless, great product.

I recently got this plug-in carbon monoxide detector and it gives me real peace of mind. Setup was as easy as plugging it into the wall outlet—no complicated installation or batteries to worry about. It has a clear digital display that makes it easy to read the CO levels at a glance, and the alarm is loud enough to hear from another room. I also like that it runs continuously as long as it’s plugged in, so I know my family is protected day and night.

Sometimes they don't give out alarm sounds, while at other times, I would spray Lysol disinfectant into the air; then these devices would start to give out alarm sounds. I didn't expect they would be so sensitive to the air spray. And its price is a bit expensive.

Tbd, temperature and humidity readings are way off more than 15% off in fact. Will test the natural gas and CO2 sensors later and update the review.