• Channels: 0.3,0.5,1.0,2.5,5.0,10um
• Mass Concentration Channel PM2.5 ：0~500ug/m3 ；PM10：0~500ug/m3
• Flow Rate: 0.1ft3(2.83L/min)
• Counting Efficiency: 50% @ 0.3 µm; 100 % for particles > 0.45 µm
• Coincidence Loss: 5% at 2,000,000 particles per ft3
• Data Storage: 5000 sample records (Micro-SD card)
• Count Modes: Cumulative, Differential, Concentration,
• Air Temperature Range: 0°C to 50°C (32°F to 122°F)
• Dew-point Temperature Range: 0°C to 50°C (32°F to 122°F)
• Relative Humidity Range: 0 to 100%RH
• Air temperature Accuracy: ±0.5°C (0.9°F) 10°C to 40°C
  ±1.0°C (1.8°F) others
• Dew-Point temp. Accuracy: ±0.5°C(0.9°F) 10°C to 40°C
  ±1.0°C(1.8°F) others
• Relative Humidity Accuracy: ±3%RH 40% to 60%
  ±3.5%RH 20% to 40% and 60% to 80%
  ±5%RH 0% to 20% and 80% to 100%
• Operating Temperature: 0°C to 50°C (32°F to122°F)
• Storage Temperature: -10°C to 60°C (14°F to 140°F)
• Relative Humidity: 10 to 90%RH non-condensing
• Battery: Rechargeable battery
• Battery Life: About 4 hours continuous use
• Battery Charge Time: About 2 hours with AC adapter