Air Quality Monitor, Dust Particle Counter 3/6-Channel PM2.5 PM10 Detector With 3.2-inch Backlight Color Screen Air Quality Tester Home Use Tester for Indoor/Outdoor, Air Pollution Detection(TC-8200 6

3.2 inch color screen and comfortable buttons Large color screen with backlight can enhance the reading experience, the brightness can be easily adjusted It also displays real-time date and time. Auto power off to save battery, more power saving. Easy to use with comfortable operating buttons. Data records, graphs and PM25 alarms, with 999 sets of data records, you can easily view the data curves by pressing the chart button once. With PM2.5 alarm function, it is easy to turn on/off the alarm buzzer and set the alarm value. Built-in 2000mAh lithium battery, with a long working time of about 9 hours, easy to charge through the USB interface. And the battery cover is easy to remove and install, which is convenient for replacing the lithium battery.