Matt,
The Duspol is a tester all in itself,
it uses a neon on one side of the "cord",
this tells you that you have voltage at where you are testing, you are also told
wether or not you are working with AC or DC,with the same neon.
On the other side of the tester, you are given a solenoid, this shows the size of the voltage you are working with, this is very handy as the Duspol in itself draws
240mA, which gets rid of ghost voltages on
highly inductive circuits, the solenoid will
not trigger unless there is an actual voltage there, over 100V.
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