10 Best Spark Plug Tester in The UK

Last updated on 11/08/2025
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1
9.9
Exceptional
Lisle 20610 Inline Spark Tester
Lisle
Lisle 20610 Inline Spark Tester
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Why We Love It
  • Quick problem diagnosis made easy.
  • Versatile double-ended design included.
  • Seamless connection for efficient testing.
Main Highlights
  • Quickly diagnose problems with all ignition systems
  • Connect the tool between the spark plug and the plug wire
  • The tool is double-ended to offer a straight boot and a 90 boot on one tool
9.9
Exceptional
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2
9.8
Exceptional
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VKALTUL Spark Plug Tester SPT101,Ignition Spark Tester with Adjustable 2 Hole, 1000-6000rpm, High Efficiency,Protective Cover,Plug and Play for Automotive Car (Yellow)
VKALTUL
VKALTUL Spark Plug Tester SPT101,Ignition Spark Tester with Adjustable 2 Hole, 1000-6000rpm, High Efficiency,Protective Cover,Plug and Play for Automotive Car (Yellow)
20% OffFree Shipping
Why We Love It
  • High-quality and durable materials.
  • Quick and accurate testing process.
  • Versatile for various vehicles.
Main Highlights
  • 【High-Quality ABS Material】Spark plug tester automotive is made of high-quality ABS material, with strong impact resistance and heat resistance,lightweight, simple, efficient and easy to carry.
  • 【With Dual Hole Testing】Ignition Spark Tester has two spark plug socket, just put a new standard spark plug and a spark plug to be tested into the test hole respectively. By comparing the spark intensities of the two spark plugs, and the performance of the spark plug can be tested quickly and accurately. NOTE: For safe operation, spark plug tester we are equipped with a protective cover, so you can use it with confidence!
  • 【With Rotary Switch】Ignition Tester working frequency can be adjusted through the rotary switch according to your needs, working frequency is 0-6000rpm. The higher the set frequency, the stronger the spark intensity. Spark plug tester is save time and high efficiency, which is easy to operate.
  • 【Widely Used】Spark plug tester Plug and play, spark plug tester automotive is easy to operate, and you can start using it after connecting the adapter. Power adapter : input 100-240V AC; output 12V 1A DC; Dual hole ignition tester analyzer can be used to test 12V gasoline vehicles car spark plugs (a diameter of 12mm). It is compatible with all spark plug tests for crankshaft engines and motorcycles on the market.
  • 【Tester Size & Package】Spark tester unit Size: 145*110*85 mm (5.7*4.4*3.4 inch); Unit Weight: 354 g ( 0.8 lb ) ( Not including Power Adapter); Package Include: Spark Plug Tester : x1; Power Adapter : x1; User Manual : x1;
9.8
Exceptional
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3
9.6
Superb
Spark Plug Tester, Automotive Dual Holes Ignition Plugs System Analyzer with Adjustable Dual Holes Ignition Tester and Protective Cover Spark Plug 0 to 6000rpm Adjustable for 12mm Spark Plug
LUTIFIX
Spark Plug Tester, Automotive Dual Holes Ignition Plugs System Analyzer with Adjustable Dual Holes Ignition Tester and Protective Cover Spark Plug 0 to 6000rpm Adjustable for 12mm Spark Plug
Free Shipping
Why We Love It
  • Double hole test for efficiency.
  • Adjustable frequency enhances performance.
  • Safe operation with protective cover.
Main Highlights
  • ☎【Double hole test saves time】The ignition coil tester has two test holes. In order to see the performance of the spark plug more clearly, the spark plug tester has a double hole test function and simulates engine work. Strength, can accurately judge the quality of the spark plug, whether it can work normally, more efficient and time-saving.
  • ☎【0 to 6000rpm working frequency】The automotive spark plug tester is designed with adjustable working frequency, ranging from 0 to 6000rpm. The higher the set frequency, the stronger the spark intensity. Its working frequency can be adjusted by the knob, which can be adjusted as needed, which is very convenient.
  • ☎【Wide application】This spark plug tester is suitable for most 12V gasoline car spark plugs, 220V input voltage.
  • ☎【Easy to operate plug and play】 Spark Plug Tester simple operation, plug and play. Put the spark plug into the test hole, close the protective cover, connect the power supply and adjust the working frequency, and it is equipped with a high voltage indicator light. You can easily and visually observe the spark plug test status through the protective cover.
  • ☎【Coil tester with protective cover】 In order to make the use process safer, the spark plug tester comes with the latest car spark tester with a special protective cover design. Cover the protective cover before use to ensure the safety of the operator during the test and observe the test results visually.
9.6
Superb
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4
9.5
Superb
MR CARTOOL Spark Plug Tester with Height Adjustable 2 Test Holes for Long Spark Plugs, 500~9000rpm, Ignition System Analyzer for 12V 24V Gasoline Vehicles Spark Plugs
MR CARTOOL
MR CARTOOL Spark Plug Tester with Height Adjustable 2 Test Holes for Long Spark Plugs, 500~9000rpm, Ignition System Analyzer for 12V 24V Gasoline Vehicles Spark Plugs
Free Shipping
Why We Love It
  • Height adjustable for versatility.
  • Wide frequency range available.
  • Easy comparison of spark plugs.
Main Highlights
  • 【Height Adjustable Test Holes】MRCARTOOL H90 spark plug tester has upgraded the test hole, which adopts a knob-type copper ring design. Totate the copper ring knob can extend the socket's height 8mm higher. This new design makes the engine ignition coil tester to be compatible for not only 12V but also some longer 24V spark plugs (nut diameter:14mm/16mm). It's compatible for V.W, A.u.d.i, Mercedes-Benz, B.MW, premium cars, etc), and crankshaft engine and motorcycle spark plugs as well.
  • 【500~9000rpm Adjustable Working Frequency】Working frequency range is 500 to 9000rpm, much wider that other brands. The H90 engine ignition tester simulates the actual engine speed and can detect the ignition of the spark plug under different working conditions. The working frequency of car spark plug tester can be adjusted as required. The higher the set frequency, the stronger the spark intensity. Easy to operate, and you can use it immediately after connecting the adapter.
  • 【2 Comparison Test Holes】MRCARTOOL H90 engine ignition tester can compare the spark intensity of the two spark plugs, judge the performance and ignition intensity of the spark plugs, and replace the defective spark plugs in time. Spark plug tester has two spark plug socket, you could compare and test to make an accurate judgement at the same time. Note: The package does not include spark plugs.
  • 【High-volt Indicator and Voice Prompt】During the test, the spark plugs tester's high-voltage indicator will light up and the spark tester will emit a buzzing sound to help you determine the test frequency. Automotive spark plug tester is made of high-quality ABS engineering plastic, which has the characteristics of impact resistance and heat resistance. Light weight and portable, can be placed in the repair package for a long time.
  • 【We can offer help】MRCARTOOL provides 24/7 friendly customer service. Please email us if you need help. Note: H90 spark plug tester is not sure to compatible with spark plugs other than automotive spark plugs, such as chainsaw spark plugs, lawn mower spark plugs, etc.
9.5
Superb
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5
9.5
Superb
Spark plug tester, Inline Spark tester, Spark Tool HT Lead Ignition Spark Plug Testers Accuspark Set of 4 from Accuspark Sparkrite
Accuspark
Spark plug tester, Inline Spark tester, Spark Tool HT Lead Ignition Spark Plug Testers Accuspark Set of 4 from Accuspark Sparkrite
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9.5
Superb
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6
9.4
Superb
Save 32%
Spark Plug Tester 2 Holes, Automotive Engine Ignition Coil Tester 0-6000rpm Adjustable Working Frequency Car Spark Plug Gap Tool with Protective Cover
MOTOCOCHE
Spark Plug Tester 2 Holes, Automotive Engine Ignition Coil Tester 0-6000rpm Adjustable Working Frequency Car Spark Plug Gap Tool with Protective Cover
32% OffFree Shipping
Why We Love It
  • Dual hole design enhances accuracy.
  • Easy plug-and-play operation.
  • Adjustable frequency for realistic testing.
Main Highlights
  • DUAL HOLE TEST - The spark plug tester has two spark plug sockets, by comparing the spark strength of two spark plugs, you can judge the performance and ignition strength of the spark plugs, and replace the damaged spark plugs in time. In an automotive ignition system, the high voltage ignition coil generates high voltage, which is shunted from the high voltage ignition coil to the cylinder engine by the spark plugs, and the spark between the spark plug electrodes ignites the mixture
  • PLUG AND PLAY -- The spark plug tester is easy to operate, just put the spark plug to be tested into the test hole and then connect the power supply to start the test. The power indicator light and two high voltage signal indicator lights can help you observe the test situation more intuitively
  • 0~6000 RPM ADJUSTABLE WORKING FREQUENCY - The working frequency of the automotive spark plug tester is 0-6000 rpm, which can realistically simulate the working condition of the engine. You can adjust it by rotating the switch, when the frequency is higher, then the spark strength is stronger
  • TRANSPARENT SAFETY COVER - The Automotive Spark Plug Tester is made of thermoplastic polymer structural material (ABS) with good heat and impact resistance, which is designed to prevent sparks from spattering and injuring the operator, and the transparent protective cover also allows you to see the test results at a glance. The safety cover is made of ABS material for durability and heat resistance. Take care not to open the cover until the test is complete.
  • WIDELY USED - Can be used to test 12mm diameter 12V gasoline vehicles and is compatible with 99% of crankshaft engine and motorcycle spark plugs on the market.
9.4
Superb
Save 32%
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7
9.2
Superb
Save 33%
Sealey Vs526 in-Line Ignition Spark Tester
Sealey
Sealey Vs526 in-Line Ignition Spark Tester
33% Off
Why We Love It
  • Tests spark plugs efficiently.
  • Compatible with various engines.
  • Easy and quick diagnostics.
Main Highlights
  • Features:Tests HT supply to spark plug
  • Suitable for all spark ignition engines
  • Quick and simple fault diagnosis
  • Specifications:Model No: VS526Probe Length: 55mmLead Length: 100mmHeight: 195Width: 98Length: 28
9.2
Superb
Save 33%
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8
9.1
Superb
Save 13%
Laser 2780 Ht Lead Ignition Spark Tester, Red
Laser
Laser 2780 Ht Lead Ignition Spark Tester, Red
13% OffFree Shipping
Why We Love It
  • Efficiently troubleshoot ignition issues.
  • Compact and easy to use.
  • Environmentally friendly and compliant.
Main Highlights
  • 4 x HT lead testers
  • Connects between the spark plug and HT lead
  • For testing the output on HT leads and tracking ignition problems
  • RoHS compliant
  • Note: unsuitable for engines with deep recessed plugs
9.1
Superb
Save 13%
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9
9.0
Superb
Spark Plug Engine Ignition Tester, Akozon Car Spark Plug Tester Ignition System Coil Diagnostic Detector Auto Repair Tool Accessory
Fydun
Spark Plug Engine Ignition Tester, Akozon Car Spark Plug Tester Ignition System Coil Diagnostic Detector Auto Repair Tool Accessory
Free Shipping
Why We Love It
  • Versatile for various engines.
  • Easy spark observation window.
  • Durable, high-quality materials.
Main Highlights
  • Versatile: Pre-tested accurate and high quality new aftermarket spark plug engine ignition tester. Basic troubleshooting for all internal and external combustion engines, cars, trucks, motorcycles, generators, etc.-any personal, professional mechanical garage and auto repair shop must have.
  • Easy to observe: The transparent observation window makes it easy to observe the flashover situation and confirm whether it is normal and easy to use. The grounding clamp is firmly held and has a rubber sleeve for easy use. Simply connect the tester between the spark plug and the spark plug wire. If a spark is sent, the tester will mirror the spark and light it up-look for dirty spark plugs, defective points, bad cables or connections, etc.
  • High-quality materials: made of plastic, not easy to age, with good toughness, hardness and balanced mechanical properties, it has low temperature impact resistance, and high-quality products provide you with high-quality guarantee. Has a longer life.
  • Professional manufacturing: Lightweight and portable shape, easy to carry and store. Stable characteristics and high reliability. Factory unified standards, fine molds, professional manufacturing, CNC edge machining and cutting, perfect size, each piece is strictly controlled. You can buy with confidence.
  • SERVICE: We are responsible for the product and believe in the quality of the product. Professional features and high reliability will bring you a different experience and ensure every customer's satisfaction. If you have any questions about our products, we will solve them for you at any time.
  • SERVICE: We are responsible for the product and believe in the quality of the product. Professional features and high reliability will bring you a different experience and ensure every customer's satisfaction. If you have any questions about our products, we will solve them for you at any time.
9.0
Superb
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10
8.8
Excellent
Save 39%
KAIWEETS HT106E Socket Tester UK, RCD Plug Socket Tester Electrical Voltage Tester with LCD Display for Neutral/Live/EarthWire/RCD Testing, CAT II 300V, Includes 7 Visual Indications and Wiring Legend
KAIWEETS
KAIWEETS HT106E Socket Tester UK, RCD Plug Socket Tester Electrical Voltage Tester with LCD Display for Neutral/Live/EarthWire/RCD Testing, CAT II 300V, Includes 7 Visual Indications and Wiring Legend
39% OffFree Shipping
Why We Love It
  • Detects common wiring faults.
  • Easy-to-read LED indicators.
  • Compact and impact-resistant design.
Main Highlights
  • 【TESTING CAPABILITY】: This plug tester detects the most common wiring faults in standard and RCD electrical outlets, which is also with the standard uk and RCD protected 225 Volt AC Outlets. Capable of detecting the open wiring fault with open ground, open hot, open neutral, reverse polarity, hot/neutral reversed wires.
  • 【RCD FUNCTION】: Simulating ground fault conditions, which works on RCD outlets and confirms operation of the ground fault protective device. It tests standard outlets that are wired in parallel to RCD outlets (multiple outlets in kitchen or bath, and outdoor receptacles require RCD protection). Be careful of using this function on normal receptacles. It may cause house wiring trip.
  • 【VOLTAGE DISPLAY】: LED display helps you to measure the socket voltage and display it clearly in the LCD screen, it is also designed with a compact ergonomic and Hi-Impact Resistant ABS housing, which maintains an above industry standard impact & crush resistant rating.
  • 【INSTANT WIRING IDENTIFICATION】: The Red LED indicators can be light up clearly for easy visual indication, when activated identify one of the seven common wiring options. An easy to understand chart on the tester helps determine wiring condition in outlet, based on LED lights results.
  • 【SAFETY FIRST】: Conforms to CAT III 300V and CE-Marking, 7/24 lifetime technical support. Please feel free to contact us if you have any concerns.
8.8
Excellent
Save 39%
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