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Old 12-26-2011, 10:57 AM
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you are going to need a hand truck to move all of that
sounds way too complicated, to have all in one
i would just make multiple testers, one for each kind of system you have
and have a few adapters to inter change a few of them

all of the 7 wire testers i have used were very simple

male plug, on a cord, on one side that went to the truck
wired into a row of labeled lights (so you can see what circuits are doing what)

below that was a row of switches, with 12v power from a small breaker, on one side
(from the other side of the breaker, a small cord with alligators, to hook to any handy batt., supplied the 12v)

the other side of the 12v powered switches, went through another row of lights
(so you see that it was sending out power)
from the lights, they were hooked to a female socket to plug the trailer into

I am sure you could make a more technically advanced one
but i have never needed it

because if you have a problem, you have all your testers out any way, to find and fix the problem
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