Oil and Grease analyzer is a tabletop unit designed with dismountable integrated optical system and electrical modulation source. It has a sample testing range of 0.12 mg/L to 100 mg/L and measurement limit of 0.12 mg/L. Equipped with self-contained electrical and optical system and lock-in amplifier circuit for signal sensor. Integrated with hard disk to save test data and spectrograms. Features auto reset and regression equation calculation function.