Check the listing for details. Oil Refractometer Test Emulsion Concentration Anti-rust Cutting Tester M-10. Condition: New. Listed at 30.69 USD. Oil Refractometer Test Emulsion Concentration Anti-rust Cutting Tester M-10 Description:It Has Temperature Compensation Function,make Data More AccurateThe Eyepiece Is Made Of Optical Material,having Higher Clarity,reduce The Fatigue Of The Viewersense.The Instrument Is Housed In A Special Case With Attachments1manual;2screwdriver;3straw;4flannelette. M15 Emulsionrefractometer Has The Advantages Of Simple Structure, Shock Proof, Easy Operation And Portability, Clear Vision, High Cost Performance And So On.Emulsion Series Are Mainly Used In Mining Industry, Sugar Series Are Used In Canned Food, Fruit Juice Manufacture, Wine Making, Fermentation, Beverage, Fruit, Honey Collection And Other Fields. Salt Series Are Used In Marine Aquaculture, Aquarium, Physiological Saline Preparation And Other Fields. The Industrial Series Is Applied To The Detection Of Automobile Batteries, Coolants, Cleaning Liquids, Machine Tools, Lubricating Fluids And Cutting Fluids.At Present, The Quality Of Similar Products On The Market Is Uneven, The Quality Is In The Majority, And The Quality Of The Materials Is Insufficient