Inline Spark Tester

Lisle Ignition Spark Tester

Works on both standard and electronic ignitions Simply adjust calibration screw to proper gap s

Spark Tester for Small Engines

Small Engine Ignition Tester - For Small Engines

Designed exclusively for small engine repair Connect spark plug lead to tester and clip tester to g

Klein GFCI Outlet Tester

GFCI Tester detects the most common wiring problems in standard and GFCI receptacles Works on GFCI