Features 1、HIGH ACCURACY AND SENSITIVITY: The PM2.5 PM1.0 PM10 monitor is highly accurate and can measure PM2.5 PM1.0 PM10. With a clear and easy to read display showing PM2.5 PM1.0 PM10 levels of 0~999ug/m³, the temperature and humidity are also displayed, the monitor ensure that you breathe well 2、REAL TIME MONITORING: Sample 1.5s/time, the PM2.5 PM1.0 PM10 monitor equipped with alarm will alert you when the ug/m³ value increase(support for turning off the alarm clock). You can calibrate the monitor to ensure its accuracy over time 3、RECHARGEABLE BATTERY AND ADJUSTABLE BRIGHTNESS: Micro USB interface charging interface, 1200mAh large capacity battery, you can use PM2.5 PM1.0 PM10 monitor for a long time without having to change the battery frequently. Charging for 2 hours ensure 24 hours of use. You can also adjust the brightness of the monitor to protect your eyes in different light 4、EASY TO INSTALL: The device is designed with a stable stand to meet all your needs of sleeping indoors, traveling or going out. If you need to move a PM2.5 PM1.0 PM10 monitor frequently, you may want to consider using a portable monitor that is easy to carry 5、WIDE APPLICATION: In addition, the PM2.5 PM1.0 PM10 temperature humidity monitor is easy to carry and lightweight, ideal for use in homes, offices, classrooms and other spaces Specification Item Type: PM2.5 PM1.0 PM10 Monitor PM Detection Range: 0-999ug/m³ Temperature Detection Range: -10℃ to 50℃ Humidity Detection Range: 20%-85% RH Sampling Time: 1.5 Seconds Battery: 1 x 1200mah rechargeable lithium battery Package List 1 x Main Unit 1 x User Manual 1 x USB Cable