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, this sensor module ensures 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 CO2 levels over time. - Reference accuracy within range: 4002000 ppm - Power supply voltage range: 2.45.5 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 and highly effective, easily fits in a wide variety of setups Note: Due to different production batches, there may be slight variations 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 differences in display screens may cause slight color variations between the image and the actual item. Measurement error allowance: 13 cm.