ST600 汽车用品 Spark Plug Tester Five Testing Holes Spark Plug Tool Adjustable Working Frequency Up to 9000RPM with Steel Backboard

【Prevent Engine Issues Before They Cost You】Faulty spark plugs lead to misfires, rough idling, poor fuel economy, and even engine damage. The ST600 car spark tester eliminates the guesswork—test plugs before symptoms arise to maintain peak engine health.【Universal Compatibility , No Guesswork】This ignition tester Works with most car spark plug types, including standard, resistor, iridium, and platinum plugs (compatible with 98% of vehicles—cars, trucks, motorcycles & off-road engines). Features dual-voltage support (110V-240V), making it ideal for global use in shops, garages, or home workshops【Smart Digital Diagnostics , Real-Time RPM Tracking】Unlike basic testers, this cylinder misfire tester integrates high-frequency digital tech (up to 9000 RPM simulation) with an LCD display for live RPM feedback. Adjust settings on the fly for ultra-precise spark analysis, ensuring reliable results every time. A pro-grade tool that outperforms analog testers with smarter, faster diagnostics【High Quality】ST600 heavy duty spark plug tester made of durable 1.0mm thick metal material, which has the characteristics of impact resistance and heat resistance. It is durable and designed for long-lasting professional useNOTE: The spark plug tester DOES NOT work with very short plugs such as those used in chainsaws, because the too short spark plug is not reach the test contacts at the bottom of the unit. This product does not include spark plugs