9-in-1 Indoor Air Quality Monitor: Detects PM2.5, PM1.0, PM10, CO2, CO, TVOC, HCHO, Temperature & Humidity for Home, Office, School & Hotel

The Smart Indoor Air Quality & TVOC Monitor is a game-changer for anyone serious about their indoor environment. The sleek black design with a vibrant, easy-to-read color screen makes checking air quality effortless. It delivers real-time, accurate readings on temperature, humidity, TVOCs, and PM2.5, giving you peace of mind about the air you breathe. The sensors are impressively precise, and the device blends seamlessly into any space. If you care about air quality, this monitor is a must-have.

This is a Japanese or China product. Instructions are not good and to set up the required me to set up an account. Setting up an account required a credit card number to be entered. No credit card no account, no account no reading data online or in the app. Maybe Amazon should make that clear before consumers purchase. I am not entering any credit card data.

I bought this air monitor because I’m allergic to poor air quality. When it detects bad air, the light turns red and sends an alert, allowing me to turn on the air purifier until the light turns green. I find it very useful for those sensitive to air conditions. Additionally, it can also monitor CO2 levels in the house. So far, I really like this device—it’s easy to use and helpful for checking air quality.

Works just as advertised. Easy to read outputs. According to 3rd party testing, this is a very accurate air quality monitor. I'll probably buy a second one soon.

Didn’t come with the app instructions, so I can’t comment on how it worked with the app. All in all, it’s very easy to use and toggles metric and imperial temps quickly. It measures a variety of things and stays charged for about 6 hours off the charger. The light isn’t adjustable but it’s not too bright at night.

Like the display size. Using it in an older home to keep a check on the air quality as we are renovating Seems to work well. Gives me some peace of mind

Not sure how you this is really reporting accurate numbers, especially when the temperature and the humidity do not match my more expensive Ambient Weather device (see pict). My home thermostat also says it is 68. 73 is a bit high. The power cable coming out of the top is awkward. The app is a bit suspect. It is not on Google Play and you download the pkg file via a QR code that is on the font size 4 manual. The app however did a good job finding and connecting to the device, I just hope it does not unleash a virus or steal my data/other. Being Bluetooth it has limited range, so I may uninstall the app and hope nothing stays behind. Giving it a 4 because it is working and reporting data, if you assume it is correct. The manual, app install process and power location ding it a star. Is it accurate, who knows? Hopefully close enough that when things are bad it will provide an indication.

Don’t buy. Temp sensors are off by 6-7 degrees F. Humidity sensor is off by 5-10%. Charge not plugged in lasts about an hour at most.