Portable Ozone Analyzer Multifunctional O3 Ozone Meter Air Detector Intelligent Sensor Ozone Meter Air Quality Pollution MonitorThe product is shipped based on the color or size of the main image of the product page.We all know that air is an indispensable part of our lives. The quality of air is affecting our body and mind, but the air is colorless and tasteless, we can't measure it with the eyes. At this time, we need an air tester to help to monitor the air quality.Features:2.8" color liquid crystal display (LCD), 320 * 240 pixels.User adjustable alarm threshold for O3 to alert user of elevated levels.It can be used in office, indoor outdoor and detection of ozone residue after disinfection.Large 2000mAh capacity lithium battery.On-board fan to draw in ambient air for more accurate real-time results.Micro USB charge Low battery warning.Electrochemistry sensor for O3. Temperature and Humidity sensor. AQI for ozone concentration index. Support time and date, self-calibration function.LCD screen, display various parameters.USB charge port for convenient using.With a storage box for easy carrying.Specifications:Material: ABSColor: black+orangeScreen size: 2.8inO3 concentration AQI:0~0.100: Fine0.100~0.300: Slight0.300~1.000: Moderate1.000~4.999: SeriousBattery: 1 * lithium battery, 2000mAh (included)Item size: 164 * 74 * 26mm / 6.5 * 2.9 * 1.0inPackage size: 280 * 225 * 70mm / 11.0 * 8.9 * 2.8inPackage weight: 501g / 1.1lbPacking List:1 * Air Quality Detector1 * USB Cable1 * User Manual1 * Box