SCD41 Gas Sensor Module CO2 Carbon Dioxide Temperature and Humidity Gas Sensor Module I2C E-995 Sensor: SCD41 CO2 measurement accuracy: ± (40 ppm + 5 % MV) Voltage range: 2.4-5.5 V Low power consumption operation, average <0.4 mA at 5 V, 1 measurement/5 minutes Measuring range: 400-5000 ppm Measuring range of the relative humidity: 0-95 % RH Typical relative humidity accuracy: 6 % RH Temperature range: -10 °C - 60 °C Temperature accuracy: 15 °C - 35 °C: ± 0.8 °C -10 °C - 60 °C: ± 1.5 °C Communication: I2C Size: 22 x 14 x 8 mm / 0.86 x 0.55 x 0.86 inch Interface definition: GND: Negative input VDD: Positive input SCL: I2C clock SDA: I2C data line