1,CO2 Gas Sensor: The gas detection module can test the CO2 to ensure timely understanding of the gas content in the work environment. 2,Great Accuracy: Comes with 0-10000ppm measurement range, the CO2 gas sensor also enables stable data transmission with high accuracy. 3,Quick Response: Fast in response, this sensitive CO2 detection sensor with TTL signal output can give you reliable testing results. 4,Stable Outputs: Designed to have DO TTL output and AO signal output, the air quality sensor module will largely simplify the analysis. 5,Easy to Install: Light in weight and compact in size as well, the gas detection sensor is very convenient to install within minutes. Item Type: CO2 Sensor Module Input Voltage: DC 5V, 24V maximum. Power Consumption and Current: 150mA DO Output: TTL digital quantities 0 and 1, 0.1V and 5V. AO Output: Analog Level Signal Detection Range: 0-10000ppm Working Temperature: -10-50℃, 20℃ nominal temperature. Humidity: 95 percent RH, 65 percent RH nominal humidity. 1 x CO2 Sensor Module Note: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.