Spark Plug Tester with Pen Clip,High-Visibility Spark Tester Small Engine with Large Slot Design,Non-Disassembly Ignition Coil Testers Tool for Ignition System as Faults Diagnostic Tool

USE THIS PORTABLE SPARK PLUG TESTER TO QUICKLY CHECK YOUR ENGINE'S IGNITION SYSTEM—CLEAR INDICATORS HELP YOU TROUBLESHOOT ISSUESProduct InformationSize: 4.88 x 0.54 x 0.46 inchWeight: 0.89 ozMaterial: PVCColor: TransparentPackaging: Spark Plug Tester x 1Package Size: 7.15 x 2.55 x 0.65 inchProduct Features & Functions1. The transparent housing lets you see the spark intensity at a glance, helping you tell if the ignition system is working correctly2. Compact size allows you to keep one in your vehicle emergency kit or workshop drawer for instant access3. The grooved end increases the contact area between the wire and the instrument, giving you more reliable detectionUsage Steps1. Start the engine and let it idle2. Take the spark tester and place the grooved end directly onto the spark plug wire3. Watch the built-in bulb while the engine runs4. A flashing light means the wire is delivering a strong spark signal to the plug

• Safe to Use: This small engine spark tester lets you check ignition without take out the spark plug or disconnecting any wires. Simply place the grooved end against the spark plug wire while the engine runs. No need to take anything apart. The insulated body protects your hand from high voltage
• Upgraded Notch Design: This spark tester automotive tool includes a redesigned tip with a groove, which expands the touch area between the wire and the testing device. The enlarged notch design aim to provide superior testing performance. Each test delivers highly consistent and accurate result
• High-Visibility Bulb: When an ignition signal is received, the high-intensity bulb built into this spark checker emits a bright flash. You can see the bright flash even in direct sunlight or a well-lit workshop. The transparent housing allows you to watch the spark intensity at a glance
• Portable Design: This spark plugs tester comes with a handy pen clip that attaches securely to your pocket. You can carry it anywhere without worrying about losing it. The compact size fits easily in a glove box or toolbox, so you always have a spark checker within reach for quick engine checks
• Universal Fit for Most Engines: This spark plug tester tool is compatible with all vehicles equipped with an ignition system or a circuit breaker: motorcycles, cars, trucks, and small engines. No adapter required. Keep it in your toolbox for quick checks on any gasoline engine with spark plugs