Feature 1 can make sure the durability and stability of the refractometer 2The tester can test measure Ethylene Glycol,Propylene Glycol,Cleaning Fluids and Battery Fluids 3Professional design and reasonable structure, the compact appearance can make it easier to operate 4There is a carry case which you can store and convenient to carry, simple to use 5The test head has a transparent cover which can protect the measuring part from damage Specifications: Item Type: Antifreeze RefractometerModel: RHA-503ATCWeight: 230 g / 8.1 oz(approx.)Reference Temperature: 20Measuring Range: Ethylene Glycol: -50-0Propylene Glycol: -50-0Cleaning Fluids: -40-0Battery Fluids: 1.100-1.400sgResolution Factor: Ethylene Glycol: 5Propylene Glycol: 5Cleaning Fluids: 10Battery Fluids: 0.01sgPackage Included: 1 x Antifreeze Fluids Refractometer1 x Mini-Screw Driver1 x Pipette1 x Cleaning Cloth1 x Carrying Case .wang-edit-text{ font-family:'Arial' important; } .wang-edit-text table { border-top: 1px solid 000; border-left: 1px solid 000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid 000; border-right: 1px solid 000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }