Gravity, Air Quality Sensor, SGP40, DFRobot SEN0394

Brand: Dfrobot
Product Code: AN-19375
Availability: 4-6 business days
Planned delivery date after ordering: 2025-04-04
22.70€
Ex Tax: 18.76€

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Air quality sensor produced by DFRobot. It has a built-in SGP40 chip (introduced by the well-known company Sensirion), which measures the VOC air quality in the range from 0 ppm to 1000 ppm. The values are presented as VOC index readings - from 0 to 500. The air quality depends on what range the reading is in - the lower the VOC index value, the cleaner the air. The module uses an I2C communication interface. The longer the sensor is used, the better its sensitivity and accuracy of trend and change. In an average environment (with potentially low air pollution), the sensor can obtain an accurate VOC index immediately after use. Conversely, in a heavily polluted environment, the sensor may obtain an accurate VOC indicator approximately 1 hour after activation.

Main features:
  • Very low current consumption - about 2.6 mA
  • Built-in temperature and humidity compensation, no calibration required
  • VOC indicator for direct indication of air quality
  • Use in applications such as air purifiers, kitchen hoods, thermostats, and indoor air quality monitoring systems
Specification:
  • Type: air quality sensor
  • Embedded circuit: SGP40
  • Measurement range:
    • VOC: 0 ppm to 1000 ppm
    • VOC index: 0 to 500
  • Power supply: from 3.3 V to 5 V
  • Operating current: 2.6 mA
  • Start-up time: 10s
  • Response time: 2s
  • Communication interface: I2C bus
  • Interface address: 0x59
  • Operating temperature range: from -10 °C to 50 °C
  • Storage temperature range: from 5 °C to 30 °C
  • Working humidity range: from 0% to 90% RH
  • Dimensions: 20 x 22 mm
Set includes:
  • Gravity Air Quality Sensor - SGP40
  • Gravity connection cable