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 affordabilityEmpower 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, and indoor air quality helps to maintain a healthy environment under low carbon dioxide concentration for a period of time.Reference accuracy, specified range 400-2000 ppmPower supply voltage range: 2.4-5.5 VHigh precision: ± (40 ppm+5%)Digital I2C interfaceIntegrated temperature and humidity sensorsLow power operation to Less than 0.4 mA average value @ 5 V, 1 measure/ 5 minutesInterface definition:1. GND: Power negative input port2. : Power positive input port3. SCL: I2C clock port4. SDA: I2C data portBoard size: 13.4 x 21.6mm- Compact yet highly effective, fit effortlessly in a wide of setups.Due to different batches, there may be differences in product appearance and printed text, which will not affect useColour:As ShownMaterial:PCBType: B: Gas sensor module blue boardPackage Contents:1x Gas Sensor Module Detects kitOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.