ANCEL SP02 Spark Plug Tester Automotive Engine Ignition Coil Tester Dual Holes 0 to 6000RPM Adjustable Working Frequency Car Spark Plug Gap Tool
Condition: New
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Availability:
In Stock.
Arrives
Thursday, Jul 9
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Features
- COMPARE TWO SPARK PLUGS SIDE BY SIDE FOR FASTER DIAGNOSTICS:Why replace a spark plug if you're not sure it's the problem? The ANCEL SP02 features a dual-test design that allows you to compare two spark plugs under the same conditions. Easily observe spark activity and identify differences between plugs, helping support ignition system inspection and routine vehicle maintenance for gasoline engines
- QUICK CHECKS BEFORE PARTS REPLACEMENT:Misfires, hard starts, rough idling, or ignition-related concerns can make troubleshooting difficult. The SP02 helps users evaluate spark plug condition before replacing components, providing a convenient way to inspect spark performance during routine maintenance. Ideal for DIY vehicle owners, mechanics, and small engine users
- EASY OPERATION WITH ADJUSTABLE RPM SIMULATION:No complicated setup required. Simply install the spark plug, connect the power source, and adjust the operating frequency using the built-in control knob. Adjustable simulation settings from 06000 RPM allow users to observe spark activity under different testing conditions for a more flexible diagnostic experience
- COMPATIBLE WITH MOST 12V GASOLINE ENGINE APPLICATIONS:Designed for a wide range of gasoline-powered equipment, including cars, motorcycles, ATVs, lawn equipment, generators, and small marine engines. Compatible with spark plugs featuring an insulator diameter under 12.2 mm and a length between 33 mm and 43 mm. Please verify dimensions before use
- COMPACT DESIGN WITH PROTECTIVE VIEWING COVER:Built for workshop, garage, and home use, the ANCEL SP02 features a durable housing and transparent protective cover that allows users to observe spark activity while helping reduce exposure during testing. Lightweight and portable for convenient storage and everyday diagnostic use
- COMPATIBILITY NOTE: This tester may not be suitable for spark plugs shorter than the specified length range. If you have compatibility questions before purchase, please contact our support team for assistance
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:
Thursday, Jul 9
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
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
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.
Works great.
Reviewed in the United States on May 19, 2026 by Jim
Works great
Reviewed in the United States on April 20, 2026 by dwayne west
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
Works as advertised
Reviewed in the United States on April 24, 2026 by Jim
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.
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Reviewed in the United States on April 26, 2025 by Delbert
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
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Reviewed in the United States on May 4, 2026 by Bruce W Elwell