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Sensirion STC31 Thermal Conductivity Sensor for CO2

Sensirion STC31 Thermal Conductivity Sensor offers 16-bit resolution, 2.7V to 5.5V supply voltage range, and up to 5mA supply current rating. This is a chip-sized gas concentration sensor for high range, accurate C02 measurements designed for high-volume production. When reliability is key, the STC31 is the ideal choice due to it being based on a revolutionized thermal conductivity measurement principle, resulting in superior repeatability and long-term stability. STC31 sensor features a digital I2C interface, making it easier to connect directly to a microprocessor. Sensirion STC31 Thermal Conductivity Sensor is ideal for battery operated applications and delivers top-performance at an minimal power budget.

  • 2.7V to 5.5V supply voltage range
  • 5mA maximum supply current
  • 15µWpower consumption @ 1 measurement per minute
  • 16 bit resolution
  • -20°C to +85°C measurement range


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