1、Integrated Sensing Module: This sensor is an all in one air quality module with integrated laser dust sensor, infrared CO2 sensor, electrochemical formaldehyde sensor, VOC sensor, temperature and humidity sensor. 2、Accurate Measurement: This sensor can accurately measure the concentration of various gases, with UART (TTL level) communication interface, which makes the use more accurate. 3、Simultaneous Output: This sensor can achieve simultaneous output of carbon dioxide, formaldehyde, TVOC, PM5, PM10, temperature, humidity, a total of seven groups of data, powerful function. 4、Stable Data: 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. 5、Widely Use: This sensor can be used in gas detectors, air conditioners, air quality monitoring, air purifiers, HVAC systems, smart homes or other IAQ systems. 1 x Sensor Module1 x Data Cable Item Type: Sensor ModuleModel: M702B 485Output Mode: 485 protocolCO2 Measurement Range: 400ppm-5000ppmCO2 Measurement Accuracy: ±25%CO2 Measurement Resolution: 1ppmCH20 Measurement Range: 0ug/m³-1000ug/m³CH20 Measurement Accuracy: ±25%CH20 Measurement Resolution: 1ug/m³TVOC Measurement Range: 0ug/m3-2000ug/m³TVOC Measurement Accuracy: ±25%TVOC Measurement Resolution: 1ug/m³PM 2.5 Measurement Range: 0ug/m3-999ug/m³PM 2.5 Measurement Accuracy: ±10%PM 2.5 Measurement Resolution: 1ug/m³PM10 Measurement Range: 0ug/m3-1000ug/m³PM10 Measurement Accuracy: ±10%PM10 Measurement Resolution: 1ug/m³Temperature Measurement Range: -40℃-100℃Temperature Measurement Accuracy: ± 0.3℃Temperature Measurement Resolution: 0.01℃Humidity Measurement Range: 0-100%Humidity Measurement Accuracy: ±3%RHHumidity Measurement Resolution: 0.04%Physical Interface: XH 2.54 female chassisWorking Voltage: 5.0VDCWorking Current: ≤80mAWorking Temperature:0℃-50℃Working Humidity: ≤95%RHPreheating Time: 2 minutes (only CO2, CH20 and TVOC need to be preheated, other parameters can be displayed by power on)Service life: 5 years (in air) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.