This delivered device is our SR-8120S lubricating oils ferrous wear meter, which meets with ASTM D8120 Standard Test Method for Ferrous Debris Quantification. Ferrous debris can timely indicate wear status of mechanical components and issues of corrosion or contamination and so on. With its easy and quick analysis for oil samples, this FWM is an ideal device for onsite analysis, for example, on board or in remote areas where a complete laboratory analysis can't be carried out.