S & G Tool Aid 23900 IN-LINE SPARK CHECKER
Product Details:
IN-LINE SPARK CHECKER* Connects in-line between the spark plug and the ignition wire.
* Use to quickly troubleshoot ignition system with "hands-free" operation.
* Technician can 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 delivery system.
