Automatic Temperature Compensation: Y;Item: Digital Refractometer;Type: Hand Held;Features: Water Resistant IP65, for Measuring The Concentration of Propylene Glycol Concentration and Freezing Point In Degrees Fahrenheit;Freezing Point: 32 Degrees to -60 Degrees F;Manufacturers Warranty Length: 24 Months;Resolution: 0.2%;Range: 0 to 90%;Function: Propylene Glycol;Width: 2-11/64";Length: 4-19/64";Height: 1-7/32";Accuracy: +/-0.4%;Country of Origin (subject to change): Japan;