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.
Doc’s Diesel DEF Diesel Exhaust FluidDEF Diesel Exhaust Fluid
DEF Refractometer Measuring Diesel Exhaust Fluid Concentration of Diesel Engines
Doc’s Diesel DEF Guard Diesel Exhaust Fluid Additive 8 oz
OTC 3674 DIESEL FUEL PRESSURE TESTER MEASURES 0-1,500 BAR 12 Volt DC
OTC 1EAV3 Diesel Compression Tester Guage
OTC 6760 Diesel Fuel Filter Wrench
