SCD40/SCD41 Gas Sensor Module Detects CO2, Carbon Dioxide, Temperature and Humidity In One Sensor I2C Communication Features: 1. With pin header 2. Using high-quality materials, the quality is guaranteed 3. High precision 4. Two-in-one temperature and humidity 5. The appearance of the product is exquisite and small Description: Carbon dioxide is a key indicator of indoor air quality that damages human cognitive ability and happiness. SCD40/SCD41 is Sensirion's next-generation miniature carbon dioxide sensor. SCD40/SCD41 has high precision and high cost performance. The module is powered by a 2.54mm pitch pin header interface. The on-chip temperature and humidity compensation is realized by the built-in temperature and humidity sensor to achieve humidity and temperature measurement. The SCD40/SCD41 can intelligently adjust the indoor ventilation system according to the carbon dioxide concentration. The indoor air quality helps to reduce the carbon dioxide concentration for a period of time. Maintain a healthy, productive environment. Specifications: Supply voltage range: 2.4–5.5 V Digital I2C interface Integrated temperature and humidity sensor low power operation to SCD40: COz measurement accuracy: ±(50 ppm +5% MV) Measurement range: 400 - 2000 ppm Accuracy: ±50 ppm Relative humidity measurement range: 0 - 95 %RH Typical relative humidity accuracy: 6 %RH SCD41: COz measurement accuracy: ±(40 ppm +5% MV) Measurement range: 400-5000 ppm (low power) Accuracy: ±40ppm Relative humidity measurement range: 0 - 95 %RH Typical relative humidity accuracy: 6 %RH Interface Definition: 1.GND: negative power input port 2.VDD: Positive input port of power supply 3. SCL: I2C clock port 4. SDA: I2C data port Package Included: module X Pin header X1