Spark Plug Tester Ignition Checker Ignition Measuring Tool Spark Measurement

• Measuring range: 0-40000 volts. Unit: SE/20/30/40 (SE = small engine, abbreviation for 20,000, 30,000, 40,000 volts)

• Size: Total length 120mm, ground wire length 520mm.

• Features: High-visibility white lettering allows easy reading of gap measurements from 0 to 40k.

• Easy to operate: Attach the plug cap to this product, connect the body ground wire (black alligator clip) to the body ground, and turn the starter to check ignition.

• Applicable models: Standard plug wire tip and screw can be unscrewed, so the tester can be used for small engines and some motorcycles.