Performance Tool Professional Disc Style Diesel Exhaust Fluid (DEF) Tester
Test DEF purity and ensure proper urea levels with this professional DEF tester
Tests accurately even when hot
Professional disc type DEF, Diesel Exhaust Fluid tester
Design to test the urea purity to maintained 32.5 percent
Floating discs will accurately display urea levels
Tests accurately hot or cold, temperature compensating
For most diesel power cars, light duty and semi-trucks from 2010 to current