KZYEE KS40 Spark Plug Tester – Dual Holes 0-6000 RPM Adjustable, Ignition Coil Tester with Clear Protective Cover –Spark Tester Automotive 100-240V for Car, Motorcycle, Small Engine, 12V Gas Engines
- Dual-Comparison Testing – See Issues Instantly: Test two spark plugs side-by-side—no swapping, no guessing. Instantly spot weak sparks, carbon buildup, or inconsistent firing. Whether replacing old plugs or tuning a fresh set, save time and keep every cylinder firing at its best
- Real-Road Simulation – Adjustable 0–6000 RPM: Mimic real driving conditions, from idle (800 RPM) to highway speeds (3000 RPM) and heavy loads (4500+ RPM). Detect faults that appear only under stress, so you can fix problems before they cause power loss or higher fuel bills
- Instant Diagnosis – Plug, Test, Know: Just connect the spark plug, turn the speed dial, and get instant results—no video or manuals. Perfect for first-time users and pros alike. Works directly with 100–240V AC—no voltage converter needed
- Safe & Visible – Test with Confidence: The transparent protective cover fully contains sparks and prevents accidental shocks, while giving you a crystal-clear view of spark color, intensity, and stability. Made from reinforced, heat-resistant ABS for lasting clarity and durability
- Universal Compatibility & Practical Design: Fits 99% of 12V gas engines—cars, motorcycles, ATV，lawn mowers and small engines.With a slip-resistant base and reinforced ABS shell, it’s designed to stay steady in the garage, on the road, or in the yard. For compatibility confirmation, contact us anytime for a quick reply
- Your Trusted Spark Plug Companion – Backed by Unmatched Support: We test spark plugs – you test us. 30-day no-questions replacement 1-year Guarantee.24/7 customer service (No chatbots, just real people). What we sell is not tool, but your freedom to diagnose spark plugs in the future
