Hand-held engine antifreeze liquid car battery ethylene glycol propylene glycol refractometer to measure the freezing point of antifreeze liquid atc products are shipped according to the color or size of the main picture on the product page. Brand ATC handheld antifreeze battery ethylene glycol propylene glycol refractometer freezing point meter with box Description: This model is equipped with a C unit system. Through the percentage indication, we can know the freezing point of cooling systems based on ethylene glycol or propylene glycol. They can also be used to test the concentration of ethylene glycol or propylene glycol in antifreeze. There is an additional scale to measure the freezing point of the windshield cleaning fluid. Features: Equipped with ATC, it can automatically adjust to correct the temperature difference during use. The refractive index is closely related to temperature. It is important to use a refractometer with automatic temperature compensation to provide you with the most accurate measurement results under any type of ambient temperature. Able to perform high-precision measurements and provide accurate results. Equipped with vivid and distinctive marks, easy to read. It only uses ambient light and does not require batteries. Manufactured by experienced craftsmen, it is not easy to damage to obtain RHA-503ATC, which can measure four main types of antifreeze/battery/cleaning liquid specifications: measuring range: ethylene glycol: -50C-0C propylene glycol: -50C-0C cleaning liquid: -40C-0C Battery fluid: 1.100-1.400sg Resolution: Ethylene glycol: 5C Propylene glycol: 5C Battery fluid: 0.01sg (ATC) Temperature compensation range: 10C-30C Durable aluminum structure recognized by strict quality and safety standards, Lightweight, easy to focus and calibrate Accurate test results are guaranteed to be made of the highest quality aluminum and rubber, light weight, soft and comfortable non-slip rubber pad is very easy to use and calibrate the package includes 1 x handheld refractometer 1 x instruction manual 1 x Mini screwdriver 1 x pipette hard plastic case, filled with sponge Warranty: 1 year warranty All our products are manufactured under strict quality control guidelines. Easy to use: just put about 2-3 drops on the surface of the prism, then cover Cover, make sure there are no dry spots or bubbles on the glass. Wait 30 seconds,