OTC (OTC5025) OTC UREA DEF Refractometer
Features and Benefits: DEF-unique calibrated scale with 32.5%. Enables operators to clearly determine if the DEF in their vehicle consists of a 32.5% Urea / Water solution. 15-40% variance on scale. 0.5% line graduations. Complete kit provides operators everything they need to calibrate and use DEF Refractometer. EPA regulations require all diesel engines manufactured on or after January 1, 2010 to meet lowered NOx emissions standards. Kit includes: Refractometer, dropper, lens wipe cloth, instructions and quick guide, screwdriver and case.