The CCS811 is a gas sensor used to monitor air quality and can measure a large number of volatile organic compounds (VOC). The sensor data can be converted to a total volatile organic compound (TVOC) or carbon dioxide equivalent (eCO2) level. technical specifications - digital interface: I2C - Operating voltage: 3 ... 5 V - compatible with Arduino, Raspberry Pi, etc - Dimensions (LxWxH): 21 x 18 x 3 mm Pollutant detection - Total Volatile Organic Compunds (TVOCs): 0 ... 1,187 parts/billion - Carbon dioxide equivalent (eCO2): 400 ... 8,192 parts per million Operating mode - Mode 0: Idle incl. power saving mode - Mode 1: Constant power, 1 IAQ measurement per sec. - Mode 2: Pulse mode, 1 IAQ measurement/10 sec - Mode 3: Low current pulse mode, 1 IAQ measurement/60 sec. - Mode 4: Constant power, 1 IAQ measurement/250 ms Note: A single burn-in of 48 hours and a warm-up time of 20 minutes is recommended before valid data can be expected. https://elecena.pl/product/17874833/sen-ccs811v1-developer-boards-air-quality-sensor-ccs811 2021-04-25 https://elecena.pl/product/17874833/sen-ccs811v1-developer-boards-air-quality-sensor-ccs811 2022-05-06 https://elecena.pl/product/17874833/sen-ccs811v1-developer-boards-air-quality-sensor-ccs811 2023-06-08 https://elecena.pl/product/17874833/sen-ccs811v1-developer-boards-air-quality-sensor-ccs811 2023-08-31 https://elecena.pl/product/17874833/sen-ccs811v1-developer-boards-air-quality-sensor-ccs811 2024-03-13 https://elecena.pl/product/17874833/sen-ccs811v1-developer-boards-air-quality-sensor-ccs811 2024-06-13 https://elecena.pl/product/17874833/sen-ccs811v1-developer-boards-air-quality-sensor-ccs811 2025-04-07 https://elecena.pl/product/17874833/sen-ccs811v1-developer-boards-air-quality-sensor-ccs811 2025-12-29 https://elecena.pl/product/17874833/sen-ccs811v1-developer-boards-air-quality-sensor-ccs811 2026-02-20