4-in-1 Antifreeze Refractometer Ethylene Glycol, Propylene Glycol, for Freezing Point of Cooling Water, Disk Water, AdBlue, Battery

Use: With this clip-on refractometer, you can determine the freezing point of ethylene glycol and propylene glycol in your car, solar system, heat pump, heating system, or other machinery or water systems. MEASURING RANGE: Ethanediol (ethylene glycol): 0 to -50 ° C; Propanediol (propylene glycol): 0 to -50 ° C; Windshield cleaning fluid - ethanol + water: 0 ° C to -40 ° C, propylene glycol + water (SRF1): 0 ° C to -40 ° C. AdBlue: urea concentration 30% - 35%. Battery acid 1.10 to 1.40 kg / L. Easy to use; with manual in French and 4 languages. Precision measurement: Adapt the optical system of the eyepiece group: 4-8 times the amplification system, progressive manual focusing. Can adapt to all eyes. To cover myopia and hyperopia, you should not observe the measured data with glasses. Calibration: Zero calibration with distilled water at 20 °C, automatic temperature compensation between 10 °C and 30 °C (ATC).