describe: Handheld 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 image on the product page. Brand ATC handheld antifreeze battery ethylene propylene glycol refractometer freezing point meter with box describe: 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. feature: It is fully equipped with ATC, which can automatically adjust to correct temperature differences 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 sharp markings, easy to read. It only uses ambient light and does not require batteries. Made by experienced craftsmen, not easy to damage Obtain RHA-503ATC and be able to measure four main types of antifreeze/battery/cleaning fluid Specification: Measuring range: Ethylene glycol: -50C-0C Propylene glycol: -50C-0C Cleaning fluid: -40C-0C Battery fluid: 1.100-1.400sg Resolution factor: Ethylene glycol: 5C Propylene glycol: 5C Battery fluid: 0.01sg (ATC) Temperature compensation range: 10C-30C Approved by strict quality and safety standards Durable Aluminum structure, light weight, light weight Easy to focus and calibrate Accurate test result guarantee Made of the highest quality aluminum and rubber, light weight Soft and comfortable non-slip rubber pad Very easy to use and calibrate Package includes 1 x Handheld refractometer 1 x instruction manual 1 x mini screwdriver 1 x pipette Hard plastic shell, 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 prism surface and close the lid to make sure there are no dry spots or bubbles on the glass. Wait for 30 seconds, allow the sample to reach ambient temperature and observe through the eyepieces, while aiming the refractometer at the light source