- DEF Tester available on most diesel vehicles.
- Testing the urea solution concentration/content in DEF / AdBlue tanks.
- Testing at hot or cold temperatures.
- Easy to use and read. (Three floating discs for accurate reading)
- An aqueous urea solution made with 32.5% urea and 67.5% deionized water.
The DEF Tester (DEF-906) has been designed to allow the DEF / AdBlue to be tested for urea strength. In order for the diesel engine emissions system to function correctly the strength of the DEF / AdBlue solution must be maintained at 32.5% urea.
The strength of the urea solution might be changed due to the water evaporation or solution contamination, so by using the DEF-906 checks DEF / AdBlue solution frequently to maintain the ideal urea strength.
How to use DEF Tester :
Using a DEF Tester(DEF-906 Model) , you will fill the tester with DEF or AdBlue solution to the designated line.
Then read number of floating discs which displays the urea concentration level.
Number of Floating Discs
Urea Level
Reference
0
＜29%
Change Fluid
1
30%
Change Fluid
2
32.5%
Ideal
3
35%
Change Fluid
3. Flush the tester with clean water and dry it after each use.
