Aircraft / Avionics Orders: 800.447.3408 Radio Control Orders: 877.219.4489
AT5K means: “At 5000 Ohms” change that plug!
The Tempest AT5K quickly and accurately checks spark plug resistors and quickly displays the results.
Note: The AT5K only checks resistance values. It does not replace, nor is it a substitute for, other tests required to determine a spark plug’s condition.
Checking Spark Plug resistance is important!
Excessive resistance causes: