Frienda Inline Spark Plug Tester - 2 Pieces

The Frienda Inline Spark Plug Tester is a practical diagnostic tool designed for automotive use, allowing users to quickly diagnose ignition and engine issues. This tool features a double-ended design with both straight and 90-degree boots, making it versatile for various applications. It measures approximately 11.3 inches in length and is made from a quality plated shaft that is rust and corrosion resistant. The internal bulb provides a bright white light to indicate a healthy spark, while a dim light signals a weak coil or plug. This tester is suitable for all 2- or 4-stroke engines, including cars, trucks, motorcycles, lawnmowers, chainsaws, and more. • Diagnoses ignition misfires quickly and easily • Double-ended design with straight and 90-degree boots • Bright white light indicates healthy spark; dim light indicates weak spark • Measures approximately 11.3 inches in length • Suitable for all 2- or 4-stroke engines