Krohne says the meter can provide an accurate record of the fluid that was moved and can be independently verified to validate the measurements. It is said to work equally well on tank wagons or hose systems. With its robust fully welded construction, full bore pipe construction, absence of moving parts, and wear- resistant liner materials, Krohne says the OPTIFLUX 4100 is an excellent choice for demanding applications in harsh environments or with aggressive and abrasive media such as manure pumping and spreading. The meter is also widely used for custody transfer applications, and has a wide range of certifications, including Organisation Internationale de Métrologie Légale (OIML) R49 and R117, and Measuring Instruments Directive MI-001 and MI-005.The OPTIFLUX 4100 has rugged construction that is claimed to extend equipment lifetime. Offering good corrosion, erosion, and abrasion resistance, it is available with a wide choice of housing and flange materials, including various grades of stainless steel. It features bi-directional flow metering and a wide range of approvals for hazardous areas. The OPTIFLUX 4100 also provides extensive diagnostic capabilities.