Petroleum testing is the analysis during upstream, midstream, and downstream production processes of petroleum products. It is most commonly used to test petroleum product, its product components, byproducts of crude oil, fuel, natural gas, upstream oil and gas and other formats of petroleum. - The instrument is used to detect the apparent viscosity of the apparent oils. With 15 inch color LCD touch display to realize the operation. It adopts the imported compressor, the cascade refrigeration technology with the fast cooling speed. The parameters of all standard oils can be editable and stored, it can save the 1000 groups of history test data and it’s convenient to check and reuse. Configuration with minniprinter to automatically print the report after the test.