Inline Spark Plug Tester for Motorcycles, Lawn Mowers, and Cars

Spark Plug Ignition Tester

This spark plug ignition tester quickly and easily diagnoses ignition and engine problems in your car, reducing engine failures or loss of power caused by ignition misfires. It checks for bad spark plug connections, contact points, and cables.

Indicator Light

The tester features a sensitive indicator light that provides clear feedback about the spark and engine status. A bright white light indicates a good spark, while a jumpy, dull color indicates a weak coil or plug.

Safe & Reliable

Designed with a hard, impact-resistant plastic shell, this tester is durable and impact-tolerant. The built-in copper wire ensures good conductivity and can handle high voltage current. The rubber protective cover is waterproof and dustproof, ensuring safety and protection against electricity leakage.

How to Use

1. Shutdown: Turn off the engine and remove the spark plug wires.
2. Connect: Attach the black connector to the spark plug.
3. Insert: Insert the metal end of the tester into the spark plug wire. The indicator light will flash if the engine is started and the ignition circuit is on.

Extensive Use

Suitable for various internal and external engines, this tester is widely used in cars, trucks, motorcycles, lawn mowers, snow blowers, trimmers, and generators. You can quickly diagnose your car without visiting a repair store, saving both time and money.