4 in 1 Antifreeze Refractometer for Checking Freezing Point of Automotive Antifreeze Systems, Refractometer for Battery Acid, Ethylene Propylene Glycol

【4 in 1】If you notice that the battery of your car, solar power plant, or heat pump is no longer holding up, don't rush into replacing it. With this antifreeze refractometer, you can measure the specific gravity of your battery acid and get a quick overview of the condition of the battery fluid. The refractometer can also be used to measure the freezing point of cleaning fluids, the antifreeze point, and the ADBlue point. Easy to use: Apply 2-3 drops of the sample to the refractometer's prism and look through the eyepiece to obtain the reading directly. ATC design: The refractometer features automatic temperature compensation from 10°C to 30°C, a direct reading, fast, accurate, and lightweight. 【Package Contents】1 x refractometer, 1 x calibration screwdriver, 1 x pipette, 1 x instruction manual, 1 x cleaning cloth, and a FREE hard case included for convenient storage and transport. Note: Do not measure abrasive or corrosive chemicals with this instrument.