Dual Holes Spark Plug Tester

Unlock Engine Performance: Test Your Spark Plugs! “I work on small engines as a hobby and came across this tool. I’ve tried it out and really like it. It will come in handy to rule out bad spark plugs!.” - Dennis J. Carmon Why Get Our Dual Holes Spark Plug Tester? ✅Accurate: A multimeter measures resistance and voltage but lacks real-time spark testing. The Dual Holes Spark Plug Tester evaluates spark plug performance and ignition strength. It tests 12mm diameter, 12V spark plugs, and is compatible with 99% crankshaft engine and motorcycle plugs. ✅Efficient: The spark plug tester features a dual-hole function, allowing you to quickly and accurately test a new spark plug alongside one being evaluated. This setup simulates engine conditions, resulting in efficient measurements and precise results. ✅Convenient: For convenience, the automotive spark tester operates at 0-6000 RPM, with an adjustable frequency via a rotary switch. Higher frequencies produce stronger spark intensity