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 and temperature measurement functions, which is a very practical tool 3. COMPACT AND PORTABLE: ma CO2 sensor module small size, is lightweight, easy and quick to assemble, 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 measuring range of 400 ppm – 2000 ppm with an accuracy of 50 ppm 5% reading . Carbon Dioxide Sensor Module Detection Specification: Item Type: Carbon Dioxide Sensor Module Measuring range: 400 ppm - 2000 ppm Accuracy: 50 ppm 5% reading Current consumption: 17 mA (measurement speed 5 seconds)/0,5 mA (measurement speed 5 minutes) Product Size: approx. 25.5 x 22.8 x 7.7mm / 1 x 0.9 x 0.3 inch . Carbon Dioxide Sensor Module Detection Package List:1 x Sensor 1 x Pin Connector . Carbon Dioxide Sensor Module Detection