QWORK® 4 in 1 Antifreeze Refractometer with Automatic Temperature Compensation for + Battery Fluid AdBlue(DEF) Windshield Washer

Multi-functional device measures Ethylene Glycol, Propylene Glycol, Windshield Washer Fluid, AdBlue (DEF), and Battery Fluid. Wide measurement range, antifreeze freezing point -50~0℃, battery liquid specific gravity 1.10 to 1.40 kg/L, glass water freezing point -40~0℃, urea concentration 30%-35% Features zero calibration with distilled water at 20°C for accuracy and reliability. Offers automatic temperature compensation from 10°C to 30°C . Note: Cannot measure the freezing point of methanol antifreeze and methanol glass water.