precise air with our multifunctional handheld air particle tester, capable of detecting particles as small as 0.3μm and up to 10μm, ensuring comprehensive PM2.5 and PM10 analysis for your environment This device features high sensitivity sensors, double measurement modes, and realtime data display, making it essential tool for accurate particle counting Perfect for use in factory workshops, laboratories, offices, public space, and home environment, providing critical insights into air for health and Ideal for environmental professional, industrial engineers, and air enthusiasts seek reliabled and efficient air particle analysis With 2000mAh battery, enjoy extended usage time and peacing of mind know you can monitor air anytimes, anywheres, Manufacturer: Kaeltsyn