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General Description

The Hanvon N1 sensor by Hanvon Technology is a handheld device that provides real-time measurements of PM2.5 and formaldehyde (HCHO).  

Principle of Operation

Hanvon N1 uses integrated laser light-scattering to measure particles smaller than 2.5 micrometers in aerodynamic diameter. It converts the signal to a PM2.5 mass concentration, sends the data to a server via WiFi and displays the readings both on the sensor screen and on a cell phone application.


  • Dimensions: 124x80x31 (mm)
  • Weight: 160 g
  • Battery: yes
  • Power supply: 5V MicroUSB and rechargeable battery
  • Sensor lifetime: N/A
  • Clock function: no
  • Sampling mechanism: fan
  • Response time: 4s
  • Environmental operating conditions: 0 °C – 50 °C, < 90% RH
  • Internal data logging: no
  • Data communication and logging: data uploaded through WiFi to a cloud
  • Data visualization: iPhone and Android app
  • Weatherproof: N/A
  • Additional on-board sensors: formaldehyde, T and RH


  • Indoor Air Quality

Manufacturer's product webpage

    South Coast Air Quality Management District

    21865 Copley Dr, Diamond Bar, CA 91765



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