The PITTSBURGH Ignition Spark Checker 90° In-line Spark Checker 63593 is a tool designed to test the ignition spark in vehicles such as motorcycles, passenger vehicles, and heavy-duty/commercial vehicles. This Ignition Spark Tester is a 12 Volt device made in China by Pittsburgh. It allows users to easily check the ignition system for proper spark, helping diagnose potential issues with the vehicle's ignition system. The 90° design of the spark checker enables convenient and easy access for testing in various vehicle types.