Check the listing for details. REICHERT 13940014 Digital Refractometer,Accuracy 0.5 Deg. 16D201. Condition: New. Listed at 579.12 USD. Refractometer, Automatic, Range 1.000 to 1.463 Battery Electrolyte SG, 32 Degrees to -60 Degrees F Propylene Glycol, 32 Degrees to -65 Degrees F Windshield Fluid, 32 Degrees to -70 Degrees F Ethylene Glycol, Automatic Temperature Compensation Yes, Accuracy +/- 0.003 SG (Battery Acid), +/- 0.5 Degrees F EG Freeze Point, +/- 0.5 Degrees F PG Freeze Point, +/- 2 Degrees F Windshield Washer Fluid, Resolution 0.005 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-cost, economical use. Meets ASTM D3321-12 Standard test method for field test de.