Air quality Monitor/Recorder

FEATURES
* Monitoring air pollutant source from dust, petrochemical industry, steel-making plant, thermal power plant, restaurant, smoke, burning plants, driving automobiles.
* The meter is a real-time air quality monitor instrument used to monitor the concentration
of PM2.5, humidity and temperature in the indoor environment.
* PM2.5 : 0 to 250 μ g/m^3, Humidity : 5 to 95 %RH, Temperature : 0 to 50 ℃,℃/℉.
* Data hold, Record(Max,Min)
* Dot matrix LCD display.
* Power by UM3/AA(1.5V) X 6 batteries or DC 9V adapter
* Replacement air filter.
* RS232/USB PC computer interface