Straight Diagnostic Automotive Lawnmower Motorcycles Review

【Material】: The exterior of this inline spark plug tester is made of hard plastic, in addition to the internal pure copper wire made of high-voltage resistant wire which can withstand high-voltage current. The high brightness neon bulb can be used for a long time without heating up. 【A Practical Diagnostic Tool】: This is a must have diagnostic tool for any engine with a spark plug, and it can quickly and easily diagnose ignition/engine outboard motor issues or a fault in the fuel delivery system. 【Easy to Use】: With engine off, remove rubber boot from spark plug, and simply connect the tester between the spark plug and the plug wire. If ignition spark is being sent to the cylinder, light in tester glows & mirrors the spark. 【Scope of Application】: The spark tester probe is suitable for testing and troubleshooting small or large internal/external engines such as engines, trucks, automobiles, lawn mowers, marine engines and motorcycles. 【Service Guarantee】: Professional after-sale customer service. Please contact us if there is anything about which you are unsure or dissatisfied.Your satisfaction is our ultimate goal.