CCS811 Carbon Monoxide Sensor

Cjmcc-8118 IS a gas sensor system-on-chip (SSoC) + temperature and humidity sensor that uses low-power sensing technology to detect volatile organic compounds (VOCs) indoors. The onboard CCS811 structure of the CJMCU8118 is not a single sensor, but an integrated MCU enables the on-board processing capability.

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SKU: TS-P299
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CCS811 Carbon Monoxide Sensor CCS811 Carbon Monoxide Sensor is an ultra-low-power digital gas sensor that integrates a sensor and a CCS801-bit MCU with an analogue-digital converter (ADC) for detecting indoor air quality, including carbon monoxide (CO) and a wide range of Volatile Organic compounds (VOCs).
  • Ultra-low power consumption can be used in battery-powered equipment
  • High sensitivity, fast heating
  • An intelligent algorithm calculates TVOC / eCO2 values.
  • I2C signal output, direct communication with the main system
  • Metal oxide (MOX) sensors to monitor indoor air quality
  • An 8-bit MCU is integrated to perform the ‘first-level algorithm
  • Integrated 12-bit ADC built-in for sensor readings and digitized conversions
  • I2C slave interface can be connected directly to the master control system
  • Reset / interrupt control
  • Supply Voltage: 1.8V to 3.3V
  • Operating Temperature -40°C to 125°C
  • Operating Current 30mA
  • Power Consumption 60mW
  • The current in sleep mode is 100nA
  • Colour: purple
  • PCB Size 1.5cmx2.1cm


1. Pull-up resistors for I2C SCK and I2C SDA assumed will be part of the host system
2. you can use AUX Pin on CCS811 for optional ambient temperature sensing; if not used, leave it unconnected.

Package included:1 x CCS811  Carbon Monoxide Sensor Air Quality Numerical Gas Sensor

Development  Resources: demo codes, schematics, datasheets, etc

YouTube:  CCS811 Air Quality Monitor for Arduino

Code Example: Github

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1. There may be slight size deviations due to manual measurement, different measuring methods and tools.
2. The picture may not reflect the actual colour of the item because of different photographing light, angles and display monitor.


Weight .010 kg
Dimensions 3 × 2 × .5 cm

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