The measurments are simple and quick
so the inexperienced people or students can also do these procedures.
The samples usually do not require preparation.
With the test strips is possible the analysis on the surface section.
This tests are specific for one ion or compound.
The results are trustworthy and they are almost the only one possibility for quantitative and qualitative analysis for those who do not have an analytical laboratory.
These sets need small place so they are mobile.