Air Quality Monitor / Particle Counter

• Fine particulate matter (PM2.5) measurement
• Temperature and Humidity measurements.
• Health index (0 ~ 9) detection and alarm.
• PM2.5 time weighted average reading.
• Data hold and MAX/MIN with time stamp function.
• Six-color LED indication Air Quality Index Category (good, medium, low)
• Preset warning point of buzzer alarm, LED and alarm output.
• Manual data memory and read function.

Specifications

• Measurement Range:
  PM2.5 : 0 to 500µg/m3
  Humidity : 1% to 99%R.H.
  Temperature : -20℃ to +60℃ (-4℉ to +140℉)
• Resolution: 0.1µg/m3, 1ppm, 0.1% R.H., 0.1℃, 0.1℉
• Accuracy:
  PM2.5 : ±10% of reading±10µg
  Temperature : ±0.8℃, ±1.5℉
  Humidity : ±3%RH (at 25℃, 30 to 80% RH) or ±5%RH (at 25℃, 0 to 20% RH and 80 to 100% RH).
• Sensor type:
  PM2.5: Photodiode sensor.
  Humidity: Precision capacitance sensor
  Temperature: Thermistor sensor
• Response time
  Humidity : 45%R.H. to 95% R.H. <= 1min or 95%R.H. to 45%R.H. <= 3min
  Temperature : 10℃/2 sec.
• Sampling rate: 1 sample/second.
• Data Memory Capacity: 39 sets. (Direct reading from LCD display)
• Operating temperature and humidity: 0℃ to 60℃, below 95% R.H.
• Storage temperature and humidity: -10℃ to 60, below 70% R.H.
• Power supply: Four 1.5V LR-6/AA size batteries, AC adapter
• Battery life Approx. 8 hour
• Dimensions 165mm(L)×93mm(W)×75mm(T) , (6.5”L×3.7”W×3”T)
• Weight Approx. 380g (13.4oz)