4 in 1 Refractometer Frost Protection, Protection Tester with ATC, Antifreeze Coolant for Automotive, Tester, Windscreen Washer Fluid, Battery Fluid

Easy to use: Put 2-3 drops of a liquid sample on the prism of this hydrometer and then look through the eyepiece to get the reading directly. No test tubes required, no measuring or calculation work required, easy to use frost protection refractometer, convenient to use and time-saving. 4 in 1: High precision coolant refractometer: ethylene glycol and propylene glycol: -60°F to 32°F; specific weight of battery acid: 1.10 to 1.40 kg/l; windscreen washer fluid: -40°F to 32°F; DEF: 30% ~ 35%. ATC design: the refractometer uses automatic temperature compensation technology from 10°C to 30°C and reads directly, quickly, accurately and easily. Packing list: 1 x hydrometer refractometer; 1 x calibration screwdriver; 1 x pipette; 1 x user manual; 1 x cleaning cloth and a free hard case are included, making the antifreeze refractometer convenient to store or transport. About us: XinJiaYi always strives to provide its customers with satisfactory refractometers and shopping experiences. If you have any problems or suggestions about our hydrometer, please let us know and we will get back to you within 24 hours.