"China Lunrui Kang" PM2.5 detector imported sensor in real time, user-friendly UI design, to provide you with efficient real-time PM2.5 air quality data. Both temperature and humidity measuring capabilities and high-precision clock. 1 displays the real-time PM2.5 particulate pollutant concentrations and 6 hours of continuous PM2.5 data curve in Figure 2. Shows the current temperature and humidity 3. Displays air pollution levels, according to the air pollution level automatically change the color of text and data curve 4. Showing Date and time 5. 30s automatically update data 6. PM2.5 pollution buzzer alarm, the alarm switch controlled