Tietoc 5 Hole Spark Plug Tester Adjustable RPM 200 to 9999 Digital Display Indicator for 12V Automotive Engine Ignition Coil Tester with

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This 5-hole spark plug tester allows you to compare up to five spark plugs simultaneously, helping to identify weak or faulty plugs and improve overall engine performance in vehicles and motorcycles
Featuring an adjustable test hole with a copper ring knob, this tester accommodates spark plugs of various heights, making it highly compatible with most 12V gasoline and diesel car, truck, and motorcycle engines
The variable working frequency simulates actual engine speeds from 200 to 9999rpm, allowing you to observe spark plug ignition performance under different conditions for more precise diagnostics

Stepper number input field with increment and decrement buttons

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This 5-hole spark plug tester is engineered for automotive professionals and enthusiasts who need efficient diagnostics for 12V gasoline and diesel vehicles, motorcycles, and trucks. With its adjustable test hole and copper ring knob, it supports spark plugs of varying heights, ensuring broad compatibility. The device simulates engine speeds from 200 to 9999rpm, giving you the ability to test spark plug ignition under multiple real-world conditions. Its digital display provides instant RPM feedback, while clear indicator lights assist monitor plug performance. An ABS protective cover enhances safety by preventing accidental contact during operation. Simple plug-and-play functionality allows for quick setup and testing, making this tool ideal for workshops, garages, and home mechanics

This 5-hole spark plug tester allows you to compare up to five spark plugs simultaneously, helping to identify weak or faulty plugs and improve overall engine performance in vehicles and motorcycles
Featuring an adjustable test hole with a copper ring knob, this tester accommodates spark plugs of various heights, making it highly compatible with most 12V gasoline and diesel car, truck, and motorcycle engines
The variable working frequency simulates actual engine speeds from 200 to 9999rpm, allowing you to observe spark plug ignition performance under different conditions for more precise diagnostics
A digital display provides real-time RPM readings for accurate control and monitoring, while indicator lights allow you to easily observe the status of each spark plug during testing
The tester is designed with a high-quality ABS protective cover to prevent accidental contact and ensure operator safety during use, making it suitable for both professional and DIY automotive maintenance
Simple plug-and-play operation lets you insert spark plugs, connect the device, and adjust frequency with push buttons, streamlining your workflow and saving valuable time in automotive repair tasks

Tietoc 5 Hole Spark Plug Tester Adjustable RPM 200 to 9999 Digital Display Indicator for 12V Automotive Engine Ignition Coil Tester with

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