4 in 1 Portable Particle Counter, PM2.5/PM10
4-in-1 air particle counter with 2.8" color LCD display, optimized for strong light measurement, easy to read even in bright light. The handheld multifunctional particle counter can quickly and accurately detect PM2.5/PM10 mass concentration, air humidity temperature, formaldehyde content, dew point temperature and wet bulb temperature.