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Panasonic SN-GCJA5 Laser Particulate Matter Sensor Detects Particles As Small As 0.3µm

Panasonic has introduced the SN-GCJA5 laser-type Particulate Matter (PM) sensor which provides a fully integrated solution for the detection of airborne particles from sources such as combustion engines, the burning of solid fuels, construction materials, and waste incineration.

The SN-GCJA5 sensor consists of a microprocessor, micro-fan and laser diode. Panasonic’s sensor works by analyzing the light-scattering patterns generated as particles pass through the beam of light from the laser emitter. The SN-GCJA5 is capable of detecting particles as small as 0.3μm in diameter; most notably, dust, fly ash, soot, aerosols, fumes, mists and condensing vapors.

The laser diode in the SN-GCJA5 produces more accurate light-scattering performance than is possible with an LED emitter.

The sensor’s microprocessor controls the micro-fan’s operation in response to the density of particle dust around the laser diode. The SN-GCJA5’s built-in fan helps extend its useful lifetime much longer than that of competing devices on the market. For electrical safety, the sensor has an optimized air pathway design to minimize dust accumulation.

See Panasonic sensor solutions


Panasonic — SN-GCJA5 Laser Particulate Matter Sensor

SN-GCJA5 Features

  • 37mm × 37mm × 12mm encapsulated package
  • Weight: Just 13g
  • Optimized air pathway to minimize dust accumulation
  • High signal-to-noise ratio
  • 5.0V supply voltage
  • <100mA operating current
  • 1s response time
  • UART and serial peripheral interfaces

SN-GCJA5 Applications

  • Indoor or outdoor air-quality monitoring
  • Airborne dust detection
  • Clean room equipment
  • Fans, air purifiers, air conditioners
  • Used in retail, medical, electronics and smart devices