Feature:1. Integrated Sensing Type: This sensor is an all in one air quality module with integrated dust sensor, infrared CO2 sensor, electrochemical formaldehyde sensor, VOC sensor, temperature and humidity sensor.2. Accurate Measuring: This sensor can accurately measure the concentration of various gases, with UART (TTL level) communication interface, which makes the use more accurate.3. Stable Performance: High sensitivity and stable data. Temperature is accurate to 0.01, humidity is accurate to 0.04%, and seven sets of sensor monitoring data are automatically output through UART signal every 2 seconds.4. Simultaneous Output: This sensor can get the simultaneous output of carbon dioxide, formaldehyde, TVOC, PM2.5, PM10, temperature, humidity, a total of seven groups of data, powerful function.5. Wide Application: This sensor can be used in gas detectors, air conditioners, air quality monitoring, air purifiers, HVAC systems, smart homes or other IAQ systems.Specification:Item Type: Sensor ModuleProduct Model: M702 UOutput mode: UART protocolCO2 measurement range: 400ppm-5000ppmCO2 measurement accuracy: 25%CO2 measurement resolution: 1ppmCH2O measurement range: 0ug/m-1000ug/mCH2O measurement accuracy: 25%CH2O measurement resolution: 1ug/mTVOC measurement range: 0ug/m-2000ug/mTVOC measurement accuracy: 25%TVOC measurement resolution: 1ug/mPM2.5 measurement range: 0ug/m-999ug/mPM2.5 measurement accuracy: 10%PM2.5 measurement resolution: 1ug/mPM10 measurement range: 0ug/m-1000ug/mPM10 measurement accuracy: 10%PM10 measurement resolution: 1ug/mTemperature measurement range: -40 - 100Temperature measurement accuracy: 0.3Temperature measurement resolution: 0.01Humidity measurement range 0-100%Humidity measurement accuracy: 3%RHHumidity measurement resolution: 0.04%Physical interface: XH2.54 female socketWorking current: 80mAWorking temperature: 0-50Working humidity: 95%RHPreheating time: 2 minutes (only CO2, CH2O and TVOC need to be preheated, other parameters can be displayed by power on)Service life: 5 years (in air).Package List:1 x Sensor Module1 x Data Cable