8-In-1 Air Quality Detector PM2.5 PM1.0 PM10 HCHO TVOC O3 Temperature Humidity Monitor Product Description: This product is a multifunctional air quality detector that detects Ozone( O3), Total Volatile Organic Compounds (TVOC), Particulate Matter <2.5 micron-sized particles (PM2.51.010), Temperature, and Humidity with clock and record function. As a scientific air quality detection device, it combines multiple air sensors with a built-in fan to allow real-time monitoring of Ozone(O3), total volatile organic compounds (TVOC), PM2.51.010, temperature, and humidity on its digital LCD display. Features: 1. 2.8 inch color liquid crystal display (LCD), 320x240 pixels 2. User adjustable alarm threshold for Ozone(O3) to alert user of elevated levels 3. Test variables: PM2.51.010, Ozone (O3), TVOC, temperature, humidity 4. Large 1200mAh capacity lithium battery 5. On-board fan to draw in ambient air for more accurate real-time results 5. 5V Micro USB charging 6. Low battery warning Product Specifications 1. Display method: 2.8 inch LCD screen display, 320 x 240 pixels 2. Atmospheric pressure: 86Kpa-106Kpa 3. Detection method for PM: Laser Scattering 4. Sampling time: 1.5 seconds 5. Product Size: 155 x 87 x 35mm 6. Detection temperature: -10-50 degrees celsius; 14 -122 Fahrenheit 7. Relative humidity: 20%-85% 8. Storage temperature: -10-60 degrees celsius; 14- 140 Fahrenheit 9. Concentration unit for TVOC: mgm 10. Concentration unit for O3: ppm 11. Power source: Lithium battery with 1200 mAh capacity; 5V DC power charging via micro USB port 12. Product weight: 350g