Introducing the Gas Sensor Module – enhance your environment with precise monitoring of CO2 levels, essential for maintaining optimal indoor air quality. Combining high accuracy with affordability. Empower your indoor spaces with the sensor module, ensuring long-lasting, efficient, and accurate air quality monitoring to promote health and well-being. Intelligent adjustment of indoor ventilation systems can be achieved based on carbon dioxide concentration, helping maintain a healthy environment under low carbon dioxide levels over time. - Reference accuracy, specified range: 400–2000 ppm - Power supply voltage range: 2.4–5.5 V - High precision: ± (40 ppm + 5%) - Digital I2C interface - Integrated temperature and humidity sensors - Low power operation: less than 0.4 mA average @ 5 V, 1 measurement every 5 minutes - Pinout: 1. GND: Power negative input 2. VCC: Power positive input 3. SCL: I2C clock port 4. SDA: I2C data port - Board size: 13.4 x 21.6 mm – compact yet highly effective, fits effortlessly into a wide variety of setups Due to different batches, there may be differences in product appearance and printed text, which do not affect functionality. Color: As shown Material: PCB Type: Gas sensor Package Contents: 1 x Gas Sensor Kit Note: Light reflection and different displays may cause slight color variations between the item and the image. Measurement error allowance: +/- 1–3 cm.