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: 1PPMTVOC 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, 2Humidity Detection Ranges: 0-99%RH, 3%RHInput Voltage: 5V, 1ABattery: Built-in 3.7V, 2000mAh Lithium BatteryCurrent: 150mAPower: 0.6WColour:blackMaterial:plasticPackage Contents:1 x Air QualityMonitorOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.