MET ONE 3413 HACH Portable Airborne Particle Counter

Description

MET ONE 3413 HACH Portable Airborne Particle Counter
MFG 2012 in good condition included accessories as shown in picture
single battery ( not very good) / zero filter need replacement / laser and pump active time around 30 days
Standard Size Channels 3413  0.3, 0.5, 1.0, 3.0, 5.0, 10.0* μm
Flow Rate 3413            28.3 LPM (1.0 CFM)   ±5% (default factory setting)
3423 and 3425 50 LPM (1.77 CFM)
Coincidence Loss
28.3 LPM (1.0 CFM) 5% at 14,126,000 particles/m3 (400,000 particles/ft3)
50 LPM (1.77 CFM) 5% at 4,000,000 particles/m3  (113,266 particles/ft3)
100 LPM (3.53 CFM) 10% at 10,000,000 particles/m3  (283,166 particles/ft3)
Counting Efficiency 3413  50% ±20% for 0.3 μm,  (100% ±10% at 1.5 times the minimum sensitivity), fully complies with ISO 21501-4