K-D Tools 2756 HEI Ignition Tester

Part Number: KDT-2756
Accurately check for spark in ignition systems without removing spark plug from engine. Testers verify that energy is sufficient for spark plug to fire. Attach spark plug wire to tester end. Clamp tester to engine as ground. Crank engine and check for spark.
Calibrated for High-Energy Systems
Price:  $8.76
Weight:  0.10