Temtop PMD 351 Handheld Particle Counter Particulate Meter for PM1.0/PM2.5/PM4.0/PM10/TSP

Dimension:170 x 110 x 48 mm Weight：850g Charging Time: 3.5 hours Working Time: 8 hours Communication: USB/RS-232 Memory: 2,000,000 readings Flow Rate: 2.83 L/min Sampling Period: 1 min Light Source: 50mW, 780nm Resolution: 0.1 μg/m³ Accuracy: ±10% Measurement Range: 0~1000 μg/m³ Five Mass Ranges: PM1.0, PM2.5, PM4.0, PM10, TSP(Total Suspended Particulates) Working Temperature: 0~50 ℃ Storage Temperature: -20~60 ℃