<br>The refractometer is a portable, precision, optical instrument used for measuring the Diesel Exhaust Fluid (DEF) concentration. When a liquid sample is placed on the prism, the light passing through it is bent. The more concentrated the liquid, the more the light will bend. The refractometer contains a reticle, or scale, that is enlarged through the eyepiece to measure this light. The values on the scale have been established to evaluate the DEF condition.</br> <br>EPA regulations require all diesel engines manufactured on or after January 1, 2010 to meet lowered NOx emissions standards.</br> <br>Kit includes: Refractometer, dropper, lens wipe cloth, instructions and quick guide, screwdriver and case.</br><br/><br/>

 

Features

• Scale: 0.5% line graduations, 32.5% Indicated, Waterline & 20 Deg C and Scale 15-40%.