* Hight precision sensor PM2.5(Particulate matter)
* Data hold,Record(Max,Min) PM2.5
* Health index(0-9) detection and alarm .
* Can replacement air filter .
* Power by UM3/AA(1.5V) X 6 batteries or DC 9V adapter
* Range 0 to 250 μg/m³
* Resolution 1 μg/m³
* Accuracy ±(10 % reading + 15μg/m³)