Temtop P10 Air Quality Monitor for PM2.5 AQI, Professional Laser Particle Sensor Detector

We have had a lot of smoke due to the wildfires, this M10 unit is perfect to keep track of our interior air quality. The unit's outside PM2.5 measurements agree closely with air-quality data from the local Air Quality Management District, leading me to believe it is reasonably accurate. Inside the measurements are considerably less, especially in a closed room using a HEPA air purifier, which reinforces this impression. Outside formaldehyde HCHO measures 0.01 mg/m3 at the bottom limit of its sensitivity, while inside near some particle-board it zooms up to > 0.1, over 10 times higher. This also seems reasonable. All in all this is an excellent air-quality monitor and a bargain at its price.

The Temtop devices are all very sensitive and do a great job detecting exactly when particles, smoke, or smells enter a room. I was able to monitor and prove my neighbor was smoking down to the exact minute each day. I am not 100% sure of the accuracy of the levels, but changes in air quality will be easy to track and help find sources of problems. I had no issues with connecting it to WiFi and using the App. I am on Android.

Very pleasantly surprised by this little gadget. Very easy to use, easy to read and it seems accurate (how do you really know?). When testing it outdoors it showed similar results as published air quality for my location. It responds quickly to changes in air quality (blow out a candle and it goes crazy!) and with the built in battery it is easy to move around your house to check each room. Battery seems to last about the 6 hours advertised, just be aware that the battery strength bars disappear more quickly as it gets empty. The display is very bright, and it would actually be nice if it had a dimmer for use in a bedroom at night. The red / yellow / green indicator is helpful, although you have to look closely to see the difference between yellow and green.

All in all, a nice and affordable air quality monitor. Glad I did not spend more money , this does the trick!

This monitor is very accurate and easy to use. We purchased some cheaper temperature and humidity monitoring gauges for a reptile habitat and they were not calibrated properly and did register properly over their range. Excellent value.