Review on 🌡️ Temtop Formaldehyde Temperature Humidity Rechargeable Monitor: Accurate Monitoring for Formaldehyde Levels, Temperature, and Humidity by Larry Blanco

Works great as far as I can tell! I had to do some research to interpret the readings, so it would be nice if that information was included. I also took the device outside and compared the readings to the weather channel and airnow.gov and got similar results, so that's for sure. I would also like information on calibration and maintenance. But overall it's worth $$! I have asthma and am using the data to determine what is causing it.