Spark Plug Tester: You just need to connect the metal end of the tester to the spark plug coil and start the engine. If the ignition wire is intact, the indicator light
Universal Compatibility: The small engine ignition coil test works well with lawnmowers, motorcycles and small engine vehicles
Amazing Function: The Spark Tester is a necessary diagnostic tool for any engine with a spark plug, which can diagnose ignition/engine outboard motor issues or a fault in the fuel delivery system quickly and easily
Design: Nickel Plated Shaft, Double ended flexible tool offers a straight boot -C Internal bulb lasts for years
Well Craft: The lawnmover spark plug tester is well-craft and made with great protection shield so no loose wires or worry for any electrical shocks
Master in diagnosing engine ignition simply and quickly

Notice:
Testers light up to indicate testing result
Brightness of the light indicates the quantity of the spark
If you’re testing in bright lighting conditions and not getting the right result, try again in a less bright environment
Another thing to try is to use the tester on another engine that you know to be good (under similar lighting conditions), and compare that flash to the one on your vehicle.

Size:15*5.7cm
Package include: 1*lawn mover spark plug tester