Check the listing for details. REICHERT 13940029 Digital Refractometer,Accuracy 0.3 Deg. 16D202. Condition: New. Listed at 605.49 USD. Refractometer, Automatic, Range 0 Degrees to -54 Degrees C Windshield Washer Fluid, 0 Degrees to -57 Degrees C Ethylene Glycol, 1.000 to 1.463 Battery Electrolyte SG, Automatic Temperature Compensation Yes, Accuracy +/-0.003 SG (Battery Electrolyte), +/-0.1 Percent DEF (Diesel Exhaust Fluid), +/-0.5 Degrees F Engine Coolant Freeze Point, +/-1 Percent Engine Coolant, +/-2 Degrees F Windshield Washer Fluid Freeze Point, +/-5 Degrees F DOT3 Boiling Point, +/-5 Degrees F DOT4 Boiling Point The Reichert Digital Multi-Chek(R) Automatic Digital Refractometer lets you perform 3 critical tests with a single instrument: test coolants-both ethylene and propylene glycol, as well as battery charge and windshield fluid. It provides more than 10,000 measurements on 2 AAA batteries (included), for low-cos.