I bought this to be able to test different cables, especially ethernet. The Q&A states that it is possible to test POE ethernet with it, which is definitely not the case. Long story short, if I knew I'd spend the extra money to get something that does what it says it will do and doesn't mislead people. 3", but my question is: why are there different versions of the scout pro 3 tester? If the tester has different functions, then it should not have the same name as the following package, which at first glance only provides a shell, and the additional test is not needed in particular. In this case, the same product will not work