The LPC-P50 Portable Oil Particle Counter is photoresist (light shading) counting

 principle specified by the International Hydraulic Standards Committee.It is mainly

 for laboratory or on-site testing the degree of particle contamination and moisture

 in the oil. It has the advantages of small volume, light weight, fast detection speed,

 high precision and good repeatability, and can work under high temperature and high 

pressure environment. It is applicable for the measurement of engine oil, gear oil, 

transformer oil (i.e. insulating oil), hydraulic oil, lubricating oil, synthetic oil and other

 oils, widely used in aerospace, petrochemical, transportation ports, steel metallurgy,

 automobile manufacturing and other fields.