None of those are wonderful! Yes they will tell you if the cable is open/short,OK,crossover but it will not check that your pairs are used correctly.

Something like This looks ok compared to the cheap continuity testers.

You can hire proper testers too. Where I work bought a Fluke tester which was mega money - but before that we used to hire out a tester from somone (can't remember where at the moment) whenever we did a major install.

I did see someone renting out fluke gear for 100 quid a week
The other option is to find a network tech who'll be willing to test out your LAN for a bit of cash in hand on the side