Specifications:Material: ABSColor: whiteBattery: 1 * 350mAh lithium battery (included)Display: LCD color displaySensor: NDIR infrared carbon dioxide sensor, laser particle sensor, semiconductor sensor, optical sensor and distance sensorHCHO measurement ranges: 0-1.999mg/m³TVOC measurement ranges: 0-9.999mg/m³PM1.0/PM2.5/PM10 measurement ranges: 0-1000μg/m³;±10μg/m³(0-100μg/m³)or±10%(100-500μg/m³)CO2 measurement ranges: 400-5000PPM; ±(50 + 5% reading)PPMTemperature measurement ranges: 0-50℃; ±1℃Humidity measurement ranges: 0-99%RH; ±5%RHRecharging method: USB Type-C interface, 5V 2AItem size: 70 * 84 * 35mm / 2.76 * 3.31 * 1.38inFeatures:【8-in-1 Air Quality Tester】: This detector can be used to test and display the concentration of PM1.0, PM2.5, PM10, CO2, TVOC, HCHO, temperature andhumidity at the same time. And also has WiFi function.【High Accurate Sensors】: Uses high-precise NDIR infrared carbon dioxide sensor, laser particle sensor, semiconductor sensor, optical sensor and distance sensor, with high sensitivity, superior interference resistance ability, stable working performance, with low power consumption. 【LCD Color Display】: This air quality monitor with a large LCD color display, it can automatically adjust the display brightness according to the surrounding brightness, so that the data is clearly visible and the screen is not harsh. Support switching the display content between HCHOTVOC and PM1.0PM10 at power on.【SleepApproach Wake-up】: The screen can be au