... rate2. Large LCD display3. 2 counting modes()4. Six particle-size channels (0.3, 0.5, 1.0, 2.0, 3.0, 5.0µm)5. ... Power Supply220V±10%,50Hz±2HzSize Channel0.3, 0.5, 1.0, 2.0, 3.0, 5.0(µm)Sample Period1min~10minClockDate and TimeCounts DataTotal ... between failure)Power Rating35WDimension250*135*410(mm)Weight10.0 KgOptional accessoriesSerial port(RS232/485) LCD screen & big flow rate Air Particle Counter