Particle sensors

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Manufacturer: SHINYEI Technology

Particle Sensor Unit


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Based on the light scattering method, it detects airborne particles continuously, then outputs the detection result in UART digital output based on mass concentration (μg/㎥).


  • Redesigning sensor structure achives the smallest sensor ever.
  • Digital output by UART communication offers you designing software easily.
  • New optical design and MCU provide better accuracy and fine particle sensing.
  • Using custom-made key optical parts achieves long operating life time with high reliability.
  • Detectable Particle Size: Over 0.5µm
  • Supply Voltage: DC5.0V +/-10%
  • Operating Temperature Range: -10 to +60℃
  • Output Method: UART
  • Dimensions: 34(W) x 30(H) x 28(D) mm

How It Works (video)

  • Heater (resistor) generating updraft. Infrared light beam from LED has been focused with Lens to sensing point at the center.
  • Airborne particles have been taken into the sensor box with the updraft.
  • Particle passing through sensing point scatters light, and receptor receive scattered light through the lens and transformed into pulse signal. Pulse per unit time is proportional to the particle concentration. Pulse signal are to be converted into voltage output. (PPD20V)

Developped for:

Air Purifier, Air Quality Monitor, Air Conditioner, Ventilator


Via Magenta, 77/16A
20017 Rho (MI) - Italy
Phone +39 02 3340 0846
VAT: IT04126380155
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Via Magenta, 77/16A
Rho 20017, Italy
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+39 02 3340 0846

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