AD-2 0-40%AdBlue DEF, AUS32 Urea Refractometer Diesel Exhaust Fluid pipe antifreeze You will observe that the

You will observe that the top of the view screen is blue and where it changes from blue to clear at the bottom is where the reading should be taken

This model is designed to measure either Propylene Glycol or Ethylene Glycol Antifreezes and Battery Fluid

Large measurement dial

Calcium Chloride Freeze °F

AD-2 0-40%AdBlue DEF, AUS32 Urea Refractometer Diesel Exhaust Fluid pipe antifreeze You will observe that theItem Description: AD 2 Portable 0 40% AdBlue Diesel Exhaust Fluid (DEF) Urea Concentration Refractometer 32 AUS (Aqueous Urea Solution) BRAND NEW AD 2 (0% to 40%Urea Concentration Scale) Hand Held Refractometer in a foam lined hardcase. THE AD 2 MEASURES THE CONCENTRATION OF DIESEL EXHAHUST FLUID (DEF) Like AdBlue and other brands EPA regulations require all diesel engines manufactured on or after January 1, 2010 to meet lowered NOx emissions