Which is a good digital infrared oil analyzer

JC-OIL-6A Qingdao Juchuang Digital Infrared Oil Analyzer can be used for both infrared spectrophotometry and non dispersive infrared spectrophotometry to determine oil concentration, as well as scanning sample spectra for use as a near-infrared spectrometer. Can meet the requirements of environmental protection departments for the determination of petroleum and animal and vegetable oil content in groundwater, surface water, domestic sewage, and industrial wastewater, as well as the concentration of cooking fumes in the catering industry