... .Equipped with big touch screen. 5.Built-in PC. 6.Printer internally installed. 7.Lithium battery installed. 8.Almost ... %, non-condensingViscosity Range10-100 cst (46-2000sus) ±20%Particle SizeNAS 1638:2,5,15,25µm, ISO:4406: ... 4,6,14,21 µmAccuracy/RepeatabilityBetter than 3%Typical test time45 ... SupplyAC 220V±10%Rechargeable batterySchematic Diagram: Portable Oil Particle Counter