Feature:1. Accurate Monitoring: Utilizes scattering technology to precisely detect PM2.5 particles and provides readings on the 2.8 inch LCD screen.2. Versatile Detection: The meter sensor measures AQI, PM2.5, HCHO, TVOC, temperature, and humidity levels, allowing you to monitor the air quality in your surroundings and take appropriate actions.3. Easy to Use: With a rechargeable lithium battery and a compact size, this air quality sensor is portable and convenient to carry around, providing peace of mind wherever you go.4. Temperature and Humidity Sensor: Air quality detector includes a built in sensor to measure the temperature and humidity, providing comprehensive information for a better understanding of your indoor environment.5. Various Scenes: Indoor air quality monitor is suitable for home, office, car, hotel, kitchen, bedroom, can be used at any time, let the family life more healthy.Specification:Item Type: Air Quality MonitorMaterial: ABSPower Supply: 1200mAh Rechargeable Lithium Battery (Shipped With Built In Battery)Display: 2.8 inch LCD Screen, 320 x 240 PixelsAtmospheric Pressure: 86Kpa-106KpaPM Detection Method: ScatteringHCHO/TVOC Technology: Semiconductor Sensor, Temperature and Humidity SensorDetection Range:AQI: 0-500PM2.5: 0-999ug/m3HCHO: 0.001-1.999mg/m3TVOC: 0.001-9.999mg/m3Temperature Range: -10C to 50C / 14F to 122FRelative Humidity: 20%-85%Storage Temperature: -10C to 60C / 14F to 140F.Package List:1 x Air Quality Monitor1 x Charging Cable1 x English Manual