2pcs Auto Ignition Test Pen and Spark Plug Indicator, High Voltage Coil Diagnostic Tool for Car Engine Wire and Ignition Coil Testing, Automotive Circuit Tester for Mechanics
Spark board tester:with the engine running, place the grooved end of the tool over the spark plug wire the bulb will flash to indicate spark,compression tester automotive
Ignition system tester:quality light bulb, high brightness, easy to observe, convenient to use,tester automotive
Ignition test pen:easy to carry and use, it's suitable for home application, garage, laboratory,auto ignition coil tester
Spark tester pen:with portable pen clip, easy to carry and store, bring much convenience for you, for pickup
Start tester:the grooved end makes the contacting areas between the wire and instrument larger,circuit tester automotive