Airwise Indoor Air Quality Quality Monitor, Portable, for Real-Time PM2.5, PM1.0, CO2, PM10, Volatile Compounds, TVOC, Formaldehyde, Temperature, and Humidity. Compatible with Android & iOS

Bought this unit to find out what was the quality of air in each room of my home. Found out that it is very sensitive to the change in air quality. When the air gets stale or the CO2 increases, it beeps at you to let you know the air quality is not good. Opening a couple of windows or turn on the air conditioner helps to clear the air and the unit in a short time updates the quality number to see what the change is. Measure other air quality issues like mold or other air contaminants as described in the description. Unit runs on a built in battery but last only about an hour or so. It includes a USB cable to charge the internal battery. Last longer when plugged in to an ac to USB adapter. The time and date can be set and has the buttons behind the display to change to different modes and readings of the unit. Overall, happy with the way it works.

Tried to use it in the bedroom but it's like a flashlight in the room.

Temp reads several degrees higher and no way to read F on the tuya app. F only able to read on the device not the app. So can't tell what temp it is remotely using phone or any tuya app. Can monitor remote as long as you are within bluetooth range. You cannot monitor on the road or anywhere else.