9 in 1: Multifunctional air quality detector real-time displays time and date and monitors CO2 concentration, HCHO value, TVOC value, PM2.5/PM1.0/PM10 value, temperature and relative humidity in the air. Clear Display: digital screen with backlight, clear and easy to read, support alarm function. Multiple display modes are available, you can switch according to your needs. High Accuracy: Using air semiconductor and infrared sensor, plus high-performance chip, detection is more accurate, higher accuracy, and the accuracy can reach 1PPM. APP Control: Support to connect to the phone APP via BT, you can read up to 1440 sets of data for 60 , compatible with iOS and Android . Quick Heat Dissipation: With multiple ventilation holes, which accelerate the convection between the air and the detector, to achieve effective detection and a heat dissipation effect. Built-in Battery: Equipped with 2000mAh high-capacity rechargeable battery, low power consumption and long endurance, no need to replace the battery frequently. Wide Application: Lightweight and portable, it is suitable , office, school, warehouse, agricultural planting, etc. No need to calibrate at startup, automatic monitoring. CO2 Detection Ranges: 400-6000PPM, 5010% CO2 Detection Accuracy: 1PPM TVOC Detection Ranges: 0-2.0mg/ HCHO Detection Ranges: 0-0.6mg/ PM2.5 Detection Ranges: 0-1000ug/, 10% PM2.5 Detection Accuracy: 1ug/ PM1.0 Detection Ranges: 0-1000ug/ PM10 Detection Ranges: 0-1000ug/ Temperature Detection Ranges: -10-50, 2 Humidity Detection Ranges: 0-99%RH, 3%RH Input Voltage: 5V, 1A Battery: Built-in 3.7V, 2000mAh Lithium Battery Current: 150mA Power: 0.6W Colour:black Material:plastic Package Contents: 1 x Air QualityMonitor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.