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Kaiterra – Laser Egg 2+

General Description

The Kaiterra Laser Egg 2+ provides real-time measurements of PM2.5 and PM10 mass concentrations. The device also provides temperature, relative humidity, and TVOC measurements. Real-time data is displayed on the device’s screen. The Kaiterra mobile app also allows for viewing of real-time data, as well as retrieval of historical data.

Principle of Operation

The Kaiterra Laser Egg 2+ uses a laser particle counter, in which a sensor detects diffracted light from a particle crossing a laser beam. The diffraction events are grouped by light intensity, which are related to particle size, and a complex algorithm uses this information to calculate PM2.5 and PM10 mass in µg/m3. The sensors come factory calibrated.


  • Dimensions: 106 x 88 (Diameter x Depth) mm
  • Weight: 285 g
  • Battery: Yes
  • Battery Life: ~8 hours
  • Screen Size: 66 mm
  • Power Supply: Yes (5 VDC, 5 Watts)
  • Sensor Lifetime: 3 years
  • Clock Function: No
  • Sampling Mechanism: Fan
  • Operating Temperature: -10 to 60 °C
  • Internal data logging: No
  • PC data logging: No
  • Communications: Wi-Fi (2.4 GHz)
  • Data Download: Yes, email download link sent from mobile app
  • Data Visualization: Yes, through mobile app
  • Weatherproof: No
  • Indoor Air Quality

    South Coast Air Quality Management District

    21865 Copley Dr, Diamond Bar, CA 91765



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