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  > Spark Plug Tester
 Product Detail

Product ID: AT5K

Spark Plug Tester

The Tempest AT5K
resistance tester is a
very efficient and
effective means to test
the internal resistance in
all aviation spark plugs.
Simply place the spark
plug, barrel side down,
over the contact post and
touch the other lead end
to the firing end of the
center electrode. If the
light is green, the spark
plug resistance is below
4k ohms (thousand ohms).
If both the green and red
lights are on, then the
plug is between 4-5k ohms.
This is acceptable for
serviceable plugs. If only
the red light is on, this
indicates a resistance
value in excess of 5k ohms
and the plug should be
discarded and replaced.

Your Price: $130.33

Availability: In Stock
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