I know there has been a few topics on pectel monitors and secs monitors and Collins monitor but witch one would be best to get as I want to use it as a diagnostic in my car so if a crank sensor fail or goes faulty then I would no but was told that the secs one doesn't do that only the pectel ones how about the Collins one does that tell you if a sensor is failing I have the money to buy the pectel but I keep hearing they go faulty and not much people can get them fixed any suggestion welcome plus how are they to use