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ANCEL SP02 Spark Plug Tester Automotive Engine Ignition Coil Tester Dual Holes 0 to 6000RPM Adjustable Working Frequency Car Spark Plug Gap Tool

  • Based on 509 reviews
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Availability: In Stock.
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Arrives Saturday, Sep 12
Order within 12 hours and 21 minutes
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Features

  • DUAL SPARK PLUG COMPARISON FOR FASTER IGNITION DIAGNOSIS Compare two spark plugs side by side under identical test conditions to quickly identify weak or inconsistent ignition performance. The SP02 helps users visually check spark strength differences in real time, making it easier to isolate faulty plugs and support faster, more confident ignition system troubleshooting
  • REDUCE GUESSWORK BEFORE REPLACING PARTS Designed for diagnosing misfires, hard starting, rough idle, and weak combustion issues. Instead of replacing parts blindly, users can test spark performance first to confirm condition, helping reduce unnecessary repairs and improve maintenance accuracy for gasoline engines and small equipment
  • ADJUSTABLE RPM SIMULATION FOR REAL-WORLD TESTING Built-in control knob allows simulation from 06000 RPM, enabling spark observation under different operating conditions. This helps users evaluate ignition stability at low, medium, and high engine speeds for a more realistic diagnostic experience in workshop or garage environments
  • WIDE COMPATIBILITY FOR 12V GASOLINE ENGINES Works with most 12V gasoline-powered systems including cars, motorcycles, ATVs, lawn equipment, generators, and small marine engines. Supports spark plugs with 3343 mm length and insulator diameter under 12.2 mm. Always verify dimensions before use to ensure proper fit and stable testing
  • COMPACT, SAFE & WORKSHOP-READY DESIGN Durable housing with a transparent protective viewing cover allows clear observation of spark activity while helping reduce exposure during operation. Lightweight and portable design makes it suitable for garage, workshop, and home use, with easy storage and quick setup for routine diagnostics
  • COMPATIBILITY NOTICE (IMPORTANT BEFORE PURCHASE) This spark plug tester may not fit plugs outside the specified size range or certain specialized ignition systems. Compatibility varies by engine design and plug type. Please confirm dimensions before use to ensure accurate testing results and safe operation(Contact )

Description

ANCEL, a leading innovator in the automotive diagnostics and repair industry, has been setting new standards of excellence for decades ANCEL is a global leader in automotive diagnostic technology, providing software development, maintenance, updates and customer services related to automotive testing to its cutomers. ANCEL is committed to solving automotive aftermarket problems cost-effectively, efficiently and conveniently. ANCEL BD310-RECOMMENDED BY CAR AND DRIVER-As the 'Best Display OBD-II Scanner for DIY Use' in their 2025 Tested The ANCEL spark plug tester is a reliable and professional tool for checking spark plug performance. The SP02 simulates real engine conditions, making it super easy to use, lightweight, and built to last. It's got a straightforward design and packs a punch in terms of output energy, so you can trust it to get the job done right and fast! When you’re on the road, bad spark plugs can cause problems like sluggish performance, weak acceleration, shaky rides, and even crummy A/C. That’s why it’s super important to check and replace those spark plugs regularly. Luckily, the ANCEL spark plug tester is just the ticket! It's designed for quick and safe performance checks, so you can keep your ride running smoothly and efficiently. Don’t let a small issue turn into a big headache—grab an ANCEL tester and hit the road safety Easy to use. Everyone can easily get the hang of it. There's not much to it, simply place your used plugs in the slot, close the lid, then simply turn the dial to verify if the plug is firing! Be Forewarned: If you have any questions while using the product, feel f-ree to r-each out to us anytime. ANCEL is customer-centric and focused on meeting your needs.

Brand: ANCEL


Color: red


Item Weight: 12.48 Ounces


Item dimensions L x W x H: 3.55 x 4.44 x 5.7 inches


Min. Operating Voltage: 12 Volts (DC)


Minimum Operating Voltage: 12 Volts (DC)


Measurement Type: Ohmmeter, Spark Tester


Compatible Devices: 12V Gasoline Engines (Cars, Motorcycles, Lawnmowers, Boats) with compatible spark plug dimensions


Color: red


Item Weight: 12.48 Ounces


Item Dimensions: 3.55 x 4.44 x 5.7 inches


Brand Name: ANCEL


Model: ANCEL SP02


Manufacturer: ANCEL


Part Number: ANCEL SP02


Included Components: 1 * ANCEL SP02 Spark Plug Tester


Unit Count: 1.0 Count


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Sep 12

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • It works great
I suspected a bad plug on my tractor. Found a bad plug right off the bat! Saved guessing work. Found a new plug not firing right, the ground was bent, straightened it out and it fired fine
Reviewed in the United States on May 21, 2026 by AHoy

  • Good price
Nice tester where you can adjust rpm when testing spark plugs. Works well and time will tell about durability.
Reviewed in the United States on May 4, 2026 by Larry W.

  • Plug tester
Works great.
Reviewed in the United States on May 19, 2026 by Jim

  • Spark plug tester
Works great
Reviewed in the United States on April 20, 2026 by dwayne west

  • Time saving tool
Instantly I found 2 spark plugs that were failing in the upper RPMs using this awesome little tester. Paid for itself right there. Just make sure the plugs are cleanly grounded to the tester grounds and you'll get accurate results.
Reviewed in the United States on May 21, 2026 by JS

  • Easy to use
Works as advertised
Reviewed in the United States on April 24, 2026 by Jim

  • Great Tester To Check Spark Plug Health
A great little item to have in your DIY shop for testing plugs. First test I did with my Ancel SP02 was test the plugs on my old ONAN P220 mower engine to get it ready for this year's mowing. With the 2 test holes, it was perfect as I could watch both plugs spark same time. Noticed one plug was not as powerful as other so stopped test to see why. Did air gap measurement and found that weak plug's air gap was off. Did an adjustment and re-tested and ran the power up through it's paces. The higher the so-called RPM of tester, the noise changed in pitch to a high whine which I didn't expect. A good plug will spark blue to blue-white. If you see yellow, arcing out the glass insulator that you might not even notice from a crack, or plug has what is a dead spot (no spark) at certain RPM's of the tester it is time to replace that plug(s). Also, test all new plugs before installation. You'd be surprised to possibly find a bad plug from all the jostling around during shipment. Don't know why I hadn't gotten one of these years ago. They're also kinda fun to watch during the spark testing. I have a couple In-Line Spark Testers that work well, but this is better in that you can actually see the spark plug and what it's doing under a high RPM test load that a mower's engine won't get to and how healthy that spark is through the ranges the tester gives. ... show more
Reviewed in the United States on April 26, 2025 by Delbert

  • It's still worth buying.
Just got this, in trying it out you have to be in a dark room to see the spark I had to wrap the plastic cover in black tape to see the spark. One thing I found out, I had a new plug and a very old one. The new one was misfiring The old one was still good. Overall it's worth buying just for a test like that. You can test shorter plugs too if you just set them in there. It might not be accurate but you will at least know if it's firering ... show more
Reviewed in the United States on May 4, 2026 by Bruce W Elwell

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