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CCS811 Gas Sensor Solution

Ultra-low power digital gas sensor for monitoring indoor air quality


  • Integrated MCU
  • On-board processing
  • Standard digital interface
  • Optimised low power modes
  • IAQ threshold alarms
  • Programmable baseline
  • 2.7mm x 4.0mm LGA package
  • Low component count
  • Proven technology platform


  • Managing the sensor drive modes and measurements while detecting VOCs
  • Provides indication of IAQ levels with no host intervention
  • Simple development for faster time to market
  • Extended battery life in portable applications
  • No need for continuous monitoring in software, reduces host power/processing
  • Stable and predictable behaviour regardless of air quality at power up
  • Small form factor designs
  • Saves up to 60% in PCB footprint
  • Most robust high temperature sensor platform on the market >100 million sense cycles and proven highest tolerance to ubiquitous siloxanes to ensure best long term reliability

Product parameters

Interface I²C
Supply Voltage [V] 1.8 to 3.6
Power Consumption [mW] 1.2 to 46
Dimension [mm] 2.7 x 4.0 x 1.1 LGA
Ambient Temperature Range [°C] -40 to 85
Ambient Humidity Range [% r.h.] 10 to 95

General Description

CCS811 is a low-power digital gas sensor solution, which integrates a gas sensor solution for detecting low levels of VOCs typically found indoors, with a microcontroller unit (MCU) and an Analog-to-Digital converter to monitor the local environment and provide an indication of the indoor air quality via an equivalent CO2 or TVOC output over a standard I2C digital interface.

This product suits for the following applications:

  • Smartphones and accessories
  • Air cleaners and purifiers
  • Appliances (white goods)
  • Home controllers
  • Smart thermostats


Title Category Headline Buy
CCS811EvalKit Application Board Evaluation Kit for CCS811
ENSDashboard Tools Windows ENS Dashboard


Type Description Language
Software CCS811 Application firmware version 2.0.0 English

Technical Documents

Type Description Language
Datasheet Document version 1-06 English
Application Note CCS811 Downloading New Application Firmware English
Application Note CCS811 Design guidelines English
Application Note Programming and interfacing guide English
Application Note CCS811 Assembly guidelines English
Application Note Baseline Save and Restore on CCS811 English
Application Note End of Line Functionality Testing English

Environmental Documents

Type Description Language
RoHS Certificate ROHS Certificate_CCS811 English


Type Description Language
Product Change Notification CN04-2019 (CCS811 datasheet) English
Product Change Notification CN02-2018 (CCS811) English
Product Change Notification CN25-2017 (CCS811) English
Product Change Notification PCN05-2017 (CCS801, CCS811) English
Product Change Notification CN18-2018 (CCS811) English
Product Change Notification PCN21-2016 (CCS801, CCS803, CCS811) English

Other Information

Type Description Language
Block Diagram CCS811 Block Diagram English
Factsheet Factsheet for ultra-low power Digital VOC Sensor for monitoring indoor air quality (IAQ) English

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