INKBIRD Air Quality Monitor Indoor Co2 Detector Portable 10-in-1 Co2, HCHO, AQI, PM2.5 PM10, TVOC, Temperature, Humidity, Time, Date, for Home Office School, Data Storage, WiFi App Notification

I have been extremely happy with this Inkbird Air Quality Monitor over the past week I have been using it. I already owned a CO2 monitor that only monitored the CO2 in the house, but I really like how this one also monitors PM2.5, PM10, TVOC, HCHO, and temp/humidity in addition to CO2. I also like how it provides a AQI based on the levels it measures, and then the bottom of the unit illuminates green, orange, or red based on the current AQI. This allows me to tell the general the air quality with a quick glance when walking by the unit.The device having Wi-Fi also adds more functionality than I expected, as the unit graphs the air quality measurements in the Inkbird app throughout the entire day. This allows me to look back at trends, and really gave me insight into how much our gas stove degrades the air quality when cooking. Also, it showed me how opening a window and getting some fresh air into the house quickly improves the air quality. And the best part is these in app features do not require any additional monthly subscriptions to use!One thing to note. The built-in rechargeable battery will keep the unit operating unplugged for short periods of time, which is handy while calibrating in fresh air outside. However, the battery only supports the device for a few hours, especially when connected to Wi-Fi. Therefore, plan to install it somewhere where a USB-C charger can remain connected to it.Overall, I am incredibly happy with this air quality monitor, as it provides valuable information to help keep track of the air quality inside my home. The device is on the more expensive side, but the included features and no additional monthly subscriptions make this product worth the cost to me. I have used several distinct types of Inkbird products, and none of them have disappointed me.

Well, it appears to work pretty well, as I tried in a couple of homes. The battery finally became unchargeable, and CAN YOU BELIEVE THIS??: THE BATTERY IS NOT USER REPLACEABLE!! ARE YOU KIDDING ME?? So this is good for one re-chargeable battery life, about 9 months in my case.

The monitor came well packaged/protected. Knowing the c02 levels for my reef tank has a direct correlation to my tanks ph. It's crazy how much a few people and or animals in a room will increase your c02. I have an older c02 monitor that works OK but looks dated and doesn't have the features this one has. The extra monitoring of particulates and air quality index is nice. It was nice and easy to hook up to wifi and the app provides the information to my phone for when I'm away from home. I'm looking forward to monitoring the new data in relation to the tank. Upon set up it will beep until you set the alarm paramaters so do that first when you fire it up. Only con is no USB wall plug for the USB cord it came with but no biggie. Very happy with the purchase so far and it's mich nicer than my old one from another brand.

My office is in a crawl space so I'm slightly worried about air quality since I spend a lot of time down there. I have Winix air purifier that seems to go off constantly, so this was the perfect device for me.Pros:1) Manual is pretty descriptive with all the modes and directions for setting values manually (I'd rather not have more random devices connected to my wireless networks, even if they are isolated.2) Several things are monitored: Temperature, Humidity CO2, Air Quality, Formaldehyde, Particulate Matter (2.5, 10), Volatile Oganic Compounds, and an AQI comfort level3) It has a battery so I can move it around the room to my needs (see cons).Cons:1) I ordered the black version - its actually gray (see pics).. actual black would be nice2) I had it sitting on a bench, but if you look at the 4th pic, the LCD has ghosting so the text isn't as clear if you looked head on. I'd say it's probably a 30degree view angle.3) Temperature/Humidity seem to vary - I have 3 devices that measure similar values. One says 71.7 DegF, 35% Humidity, one says 68.1Deg F & 39.2% humidity, and this one says 71DegF and 33% humidityOverall, I'm very pleased with the unit. I don't have any precision equipment to measure accuracy (short of temperature & humidity). Would buy again!

Several indicators never showed any reading. Some, after a day of nothing, just showed the same number as another indicator. A lot didn’t change at all. Most never showed anything in the history - just no data. Setup was pretty easy and straightforward, though. App supported landscape mode when looking at device information.

This is a great little device!The boxing was sturdy (not like some other electronic devices.) It protected the device well, and the fact that there was just a small instruction booklet was not a bad thing; it was a testament to how easy it was to set this up. I opened the app, it said it found a thing, I added it and renamed it like I wanted. Total time, including taking pics, was < 5 mins, and there it is!Thanks, InkBird!