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Adafruit CCS811 Air Quality Sensor Breakout - VOC and eCO2

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Key Features:

  • Detect a wide range of Volatile Organic Compounds (VOCs)
  • Supports multiple drive modes to take a measurement every 1 second, every 10 seconds, every 60 seconds, or every 250 milliseconds
  • Intended for indoor air quality monitoring
  • Can be easily used with your favorite 3.3V or 5V microcontroller

Add air quality monitoring to your project and with an Adafruit CCS811 Air Quality Sensor Breakout. This sensor from AMS is a gas sensor that can detect a wide range of Volatile Organic Compounds (VOCs) and is intended for indoor air quality monitoring. When connected to your microcontroller (running our library code) it will return a Total Volatile Organic Compound (TVOC) reading and an equivalent carbon dioxide reading (eCO2) over I2C.

The CCS811 has a 'standard' hot-plate MOX sensor, as well as a small microcontroller that controls power to the plate, reads the analog voltage, and provides an I2C interface to read from.

This part will measure eCO2 (equivalent calculated carbon-dioxide) concentration within a range of 400 to 8192 parts per million (ppm), and TVOC (Total Volatile Organic Compound) concentration within a range of 0 to 1187 parts per billion (ppb). According to the fact sheet it can detect Alcohols, Aldehydes, Ketones, Organic Acids, Amines, Aliphatic and Aromatic Hydrocarbons.

Item Specifics
Uses I2C address 0x5A
Size: 21.0mm x 18.0mm x 3.0mm / 0.8" x 0.7" x 0.1"
Weight: 1.2g / 0.0oz
To get precise measurements you will want to calibrate it against known sources
The sensor chip has been revised to no longer support the thermistor temperature readings.
Please use an external temperature sensor and keep to using this one for gas sensing