Feature: 1. I2C INTERFACE: The carbon dioxide sensor module is fully calibrated and linearized, and the I2C digital interface address is 0x62 2. MULTIPLE FUNCTIONS: This CO2 sensor can also be used to measure temperature and humidity, with CO2 content and temperature measurement functions, which is a very practical tool 3. COMPACT AND PORTABLE: CO2 sensor module is compact in size, light in weight, easy and quick to install, suitable for DIY users 4. WIDE RANGE OF APPLICATIONS: This CO2 sensor can be used in homes, botanical gardens, bookstores, offices, buses, etc., to help measure CO2 levels 5. TECHNICAL PARAMETERS: The CO2 detection module has a measurement range of 400ppm ‑ 2000ppm with an accuracy of ±50ppm + 5% of the reading Specification: Item Type: Carbon Dioxide Sensor Module Measuring Range: 400ppm - 2000ppm Accuracy: ±50ppm + 5% of reading Current Consumption: 17mA(measurement rate = 5 seconds)/0.5mA(measurement rate = 5 minutes) Product Size: Approx. 25.5 x 22.8 x 7.7mm / 1 x 0.9 x 0.3in . Package List: 1 x Sensor1 x Pin Header