TES 5321 PM2.5 Air Quality Monitor

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.
The meter convert the concentration of PM2.5 in the air into visual data, and evaluate the air quality comprehensively.
Visual and audio alarm will be actived when the air quality reached a critical or alarm limit values.
Particle pollution comes from many different type of sources.
Fine particle (2.5 micrometers in diameter and smaller) include power plants, industrial processes, vehicle tailpipes, wood stoves, and wildfires.
Coarse particles (between 2.5 and 10 micrometers) come from crushing and grinding operations, road dust, and some agricultural operations.

Specifications
●Measurement range
-PM2.5 : 0 to 500μg/m3
-Humidity : 1% to 99%R.H.
-Temperature : -20℃ to +60℃ (-4℉ to +140℉)

●Accuracy
-PM2.5 : ≦50μg: ±5μg；>50μg: ±10% of reading
-Temperature : ±0.8℃, ±1.5℉
-Humidity : ±3%RH (at 25℃, 30 to 80% RH) ；±5%RH (at 25℃, 0 to 20% RH and 80 to 100% RH).

●Response time
-PM2.5 : ≦1min
-Humidity : 45%R.H. to 95% R.H. ≦1min；95%R.H. to 45%R.H. ≦3min
-Temperature : 10℃/2 sec.

●Resolution:1μg/m3, 1ppm, 0.1% R.H., 0.1℃, 0.1℉
●Battery:Four 1.5V LR-6/AA size batteries, AC adapter
●Battery life:Approx. 8hrs
●Accessories:Instruction manual, Battery, AC adaptor
●Size: 165mm(L)×93mm(W)×75mm(T)& Approx. 380g
●Made in Taiwan