Calorific Value:Medium Mounting Base:Dwarf Conical Electrode Material:Normal Origin:Mainland China Country/Region of Car Manufacture:China Type:Spark Plug Tester Ignition Interchange Part Number:Other Reference Codes:Other Other Part Number:Other Manufacturer Part Number:Other quality:superior warranty:one year color:as photo service:best and timely shipping:within 48 hours Product Description -Test for no spark condition -Essential for trouble shooting all internal combustion engines -Tests for lack of spark condition -Easily test ignition circuit continuity at each cylinder -Connects between spark plug and spark plug wire -Indicator light flashes when circuit is working -Great for troubleshooting any internal combustion engine -Find dirty spark plugs, defective points, bad cables or connections, etc. Specifications Material:stainless steel+plastic Color:black How to use -With engine off remove spark plug wire -Attach black connector spark plug -Insert metal end of tester into spark plug -Try to start the engine -If ignition circuit is complete, bulb will flash Package included :1 x Spark Plug Tester