Want to track what's in the air that surrounds you? Our new arrived air quality detector will help you about this. It can detect air quality in your surrounding with accurate indoor/outdoor air quality monitoring system. Useful air quality detector with quick response and high precision. Effectively protect you and your family from the harm of bad air quality. Features: Highly accurate indoor & outdoor air quality monitoring system with professional grade detection technology. Detailedly analyze air quality in your surrounding and detect PM2.5, TVOC,temperature & humidity. 3.5-inch TFT HD color display with wide viewing angle, which can reach 160, convenient for your reading. Real-time local outdoor air quality readings plus indoor temp, humidity, TVOC and PM2.5/PM10 real time gas monitoring to prevent any respiratory disease. Suitable for using in the car, living room, house with new furniture & decoration, kitchen, bedroom, office, classroom, outdoor environment, etc. Specifications: Model: D9-B / D9-D / D9-H (Optional) Material: ABS Color: White Measure Medium: PM2.5 & TVOC Test Function: PM2.5/PM1.0/PM10, 0.3um/0.5um/1.0um/2.5um/5.0um/10um number of particles, TVOC, temperature & humidity. PM2.5 Test Range: 06000g/m Temperature Test Range: -955 Humidity Test Range: 0100% TVOC Test Range: 0.0002.000mg/m Detection Technique: Semiconductor Sensing Technology Working Temperature: -955 Relative Humidity: 80%HR Battery: 1 * 3.7V 600mA Li-ion Battery (Built-in) Input: 5V, 1A Date & Time Setting: Users can set the current date and time Adjustable Automatic Shutdown Time Setting Range: 10 Minutes - 18 Hours Adjustable Backlight Brightness Setting: 10% - 100% Historical Data Settings: Users can view historical data saved by the system Maximum Storage Management Space: 65,534pcs Adjustable Timing Storage Settings: 10 Minutes - 18 Hours Adjustable Timing Screen Switching SettingS: 10 Seconds - 600 Seconds Item Weight: 219g / 7.73oz Item Size: approx. 84 * 60 * 118mm / 3.3 * 2.4 * 4.6in Package Weight: 417g / 14.7oz Package Size: 17.5 * 11.2 * 7cm / 6.9 * 4.4 * 2.8in Package List: 1 * Air Quality Detector 1 * USB Cable 1 * User Manual