... rate of 1cfm(28.3L/min) 2. Large LCD display. 3. Sensitivity:0.3micro 4. Six particle-size ... :1. 1 cfm (28.3 lpm) flow rate;2. Large LCD display;3. 2 counting modes;4. Six particle-size channels (0.3 ... , 0.5, 1.0, 2.0, 3.0, 5.0µm);5. Date and time ... Supply220V±10%,50Hz±2HzSize Channel0.3, 0.5, 1.0, 2.0, 3.0, 5.0(µm)Sample Period1min~10minClockDate and ...