Review on 🌡️ Temtop Rechargeable Temperature and Humidity Detector by Rob Dixon

I want to control PM2.5 in my wood fired house. Readings can be accurate (impossible to determine without a standard or reference instrument). When the fire is smokier, the PM2.5 reading increases. When the chimney draws better, PM2.5 decreases. All is well. Indoor CO2 readings appear to be high at > 1000 pm; The outdoor reading is 450 ppm, which also seems high. Typical CO2 concentrations in the atmosphere should be 250-350 ppm. Design flaws: 1. The display is very bright and there is no way to reduce it. Easy backlight control is welcome.2. The display cannot be turned off to save battery life.3. The temperature is given in degrees C. Every other product I've seen has a switch or setting to select F or C. Not this one. quite large. I would have preferred a smaller, more subtle design. It would be nice to have a feature that reports 24 hour PM2.5 and PM10 by averaging the readings over a 24 hour period. The device at this private location must be able to do this. Overall I'm glad I bought it and I can rule out at least one night light! As a result, my usage profile rarely turns on the device for random checks, but doesn't use it for daily or hourly monitoring.