Reap Accurate Measurements On the Go with Portable Refractometer
Simple and reliable Portable Coolant Refractometer gives accurate, repeatable measurements on an easy-to-read scale. Use it to measure automotive coolant freezing points, battery charge levels and more. Get an accurate reading with just two or three drops of solution. Prism and lens with simple focus adjustment provide repeatable results. Includes a carrying case and calibration screwdriver. Battery Coolant Refractomer with automatic temperature control (ATC). Range: -60-32°F Propylene Glycol Freeze Point, 10°F Resolution; -50-0°C Ethylene Glycol Freeze Point, 5°C Resolution; 1.15-1.30 Specific Gravity of Battery Acid, 0.01 Resolution.