Thexton Adjustable Ignition Spark Tester

Features and Benefits:Works on ignition systems from high energy electronic automotive systems to small engines. Tests for no start conditions and for spark strength. Adjustable gap allows for spark gap requirements from 0 to 40,000 volts. Gauge background makes spark easy to see for accurate measurement. Alligator clip securely fastens to ground. Screw assembly adjusts spark gap quickly and easily. Includes safety shield.