Features and Benefits: Connects in-line between the spark plug and the ignition wire Used to quickly troubleshoot ignition system with "hands-free" operation Visually check condition of ignition system at each cylinder Frequency and intensity of flash indicates whether there is an ignition system problem or a fault in the fuel deliver....(more info)
Features and Benefits: Tests all 6 or 12 volt systems5 foot cordReplaceable bulb - impact & chemical resistant housingStrain reliefGround clipTempered probe Substitute or like item: SGT27000 KT172780 ATD5513 NES5113 ....(more info)