How to Use the MRCARTOOL H90 Spark Plug Tester
Set up the H90 on a safe 12 V bench supply, fit one or two spark plugs, sweep its 500–9000 rpm simulation and interpret a controlled side-by-side test.
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A Spark Plug Tester Is a Witness, Not a Verdict: Choosing the Right Bench
Match the tester to the evidence: vehicle-side spark presence, removed-plug comparison or live ignition waveform diagnosis.
How to Use the AUTOOL SPT360 Spark Plug Tester
The AUTOOL SPT360 is a five-hole digital high-frequency spark plug tester for comparing spark plug performance and ignition strength under simulated engine speed. It supports digital RPM adjustment up to 9000 rpm, LCD backlit display control, long spark plug testing, and…
How to Use the AUTOOL SPT301 Spark Plug Tester
The AUTOOL SPT301 car spark tester is designed to test spark plug performance and spark strength under simulated engine working conditions. It supports three-hole comparative testing, 200-9000 RPM adjustment, a digital RPM display, and a transparent safety cover for safer…
How to Use the AUTOOL SPT105 Spark Plug Tester
The AUTOOL SPT105 Spark Plug Tester Tool is a dual-hole spark plug tester for comparing two spark plugs under simulated engine working conditions. It supports adjustable simulated RPM from 0 to 6000 rpm, adjustable test hole height for longer spark plug ends, and a…
How to Use the AUTOOL SPT101 Spark Plug Tester
The AUTOOL SPT101 spark plug tester is designed to check spark plug performance and spark strength by simulating engine operating conditions. It supports dual-hole simultaneous testing, adjustable simulated speed up to 6000 RPM, and a transparent protective cover for safer…