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AUTOOL SPT101 Spark Plug Tester Spark Plug Checker
US$40.00
Key Features
- Dual Hole Test
- 0-6000 RPM
- Protective Cover
- Dual Hole Test: Two test holes let buyers compare spark plugs side by side instead of testing one at a time.
- 0-6000 RPM: Adjustable working frequency up to 6000 RPM helps simulate engine conditions during checks.
- Protective Cover: The protective cover lets users observe testing while adding a safety barrier around the spark area.
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AUTOOL SPT101
Product Overview
The AUTOOL SPT101 spark plug tester is designed to check spark plug performance and spark strength by simulating engine operating conditions. It supports dual-hole simultaneous testing, adjustable simulated speed up to 6000 RPM, and a transparent protective cover for safer observation during testing.
Dual-Hole Testing
Up To 6000 RPM
Protective Cover
Plug And Play
2Test Holes
100-240VAdapter Input
12V 1ADC Output
3 YearsMain Unit Support
Click to enlarge
Click to enlargeBefore You Order And Use
Before You Order And Use
SPT101 is a high-voltage spark plug testing device. Read the protective cover, power, and plug handling rules before connecting the tester.
Close The Protective Cover
Always close the transparent protective cover before testing. The tester is designed for observation through the cover, not open-cover operation.
High Voltage Warning
Up to 1000V voltage may be generated during testing. Do not touch the spark plug, socket, or exposed test area while the tester is powered.
Power Off Before Handling
Do not insert or remove a spark plug while the power supply is connected. Turn off the tester first, then place or remove the spark plug.
Use The Correct Adapter
Use a compatible power adapter. The manual specifies 100-240V AC input and 12V 1A DC output for the SPT101 tester.
Supported Spark Plugs
SPT101 is suitable for most 12V gasoline vehicle and motorcycle spark plugs. Confirm fitment before testing unusual or non-standard spark plugs.
Dry Storage Recommended
Store the tester in a dry place when not in use. Avoid hot, humid, non-ventilated, or corrosive environments.
Care Reminder
- Check connected parts regularly and tighten them if loose.
- Avoid rubbing the housing against rough surfaces.
- Keep the circuit and wires in safe condition; replace aging wires in time.
- Avoid contact with corrosive liquids and keep the protective parts complete and reliable.
Key Features
Key Features
SPT101 focuses on simple spark plug comparison, adjustable simulated engine speed, visual test status, and safer testing with a protective cover.
Dual-Hole Simultaneous Testing
Test two spark plugs at the same time and compare spark performance more efficiently than single-plug inspection.
Adjustable Working Frequency
Turn the rotary switch to adjust the simulated working frequency. The tester supports engine simulation up to 6000 RPM.
Engine Condition Simulation
The tester simulates actual engine operating conditions so users can evaluate spark strength and plug performance visually.
Protective Cover Design
The transparent cover helps protect maintenance personnel while still allowing clear observation of the spark plug test status.
Plug-And-Play Operation
Place the spark plug, close the cover, connect power, adjust the switch, and observe the spark condition through the cover.
3-Year Main Unit Support
AUTOOL provides 3-year main unit warranty support for eligible non-human damage cases, with accessory and troubleshooting support available.
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Click to enlargeSpecifications
SPT101 Specifications
The SPT101 uses a compact dual-socket layout, rotary frequency control, power and working indicators, protective cover, and side power interface.
| Power And Control | |
| Product | AUTOOL SPT101 Spark Plug Tester |
| Power Adapter Input | 100-240V AC |
| Power Adapter Output | 12V 1A DC |
| Power Interface | Side power interface |
| Control | Rotary switch |
| Working Frequency | Up to 6000 RPM |
| Testing Layout | |
| Test Holes | 2 spark plug sockets |
| Testing Type | Dual-hole simultaneous comparison testing |
| Indicators | Power indicator and working indicators |
| Safety Cover | Transparent protective cover |
| Size And Weight | |
| Main Unit Dimensions | 145 × 85 × 113mm |
| Package Dimensions | 165 × 100 × 118mm |
| Weight | 354g |
| Application | Most 12V gasoline vehicle and motorcycle spark plugs |
Click to enlargePower And Control
ProductAUTOOL SPT101 Spark Plug Tester
Power Adapter Input100-240V AC
Power Adapter Output12V 1A DC
Power InterfaceSide power interface
ControlRotary switch
Working FrequencyUp to 6000 RPM
Testing Layout
Test Holes2 spark plug sockets
Testing TypeDual-hole simultaneous comparison testing
IndicatorsPower indicator and working indicators
Safety CoverTransparent protective cover
Size And Weight
Main Unit Dimensions145 × 85 × 113mm
Package Dimensions165 × 100 × 118mm
Weight354g
ApplicationMost 12V gasoline vehicle and motorcycle spark plugs
How To Use
How To Use
SPT101 is designed for simple visual spark comparison. Always close the protective cover before testing and turn off power before inserting or removing spark plugs.
Place The Spark Plug
Place the spark plug into tester socket A or B. Use both sockets when you need side-by-side comparison testing.
Close The Protective Cover
Cover the transparent protective cover before testing to help keep the operator safer during spark observation.
Connect Power And Start
Plug the power adapter into the side power interface, connect power, and turn the rotary switch clockwise to power on the tester.
Adjust RPM And Observe
Continue turning the switch clockwise to adjust simulated RPM. Observe spark plug status through the protective cover.
Click to enlargeUse Notes
- The working frequency can be adjusted after the tester is powered on.
- The higher the simulated frequency is set, the stronger the spark output may appear.
- Do not pull out or insert a spark plug while the power supply is connected.
- Turn off the tester before changing spark plugs.
Product Comparison
Product Comparison
Compare SPT101 with other AUTOOL spark plug tester models before choosing the right socket count, display type, height adjustment, and comparison capability.
SPT101 FocusDual-hole compact spark plug tester with rotary RPM adjustment, protective cover, plug-and-play operation, and visual comparison testing.
SPT105 FocusDual-hole spark plug tester with adjustable test hole height, simulated engine performance, RPM adjustment, and protective cover.
SPT301 FocusThree-hole comparative testing model with digital display, simulated engine performance, RPM adjustment, and protective cover.
SPT360 FocusFive-hole comparative testing model with digital display, simulated engine performance, RPM adjustment, and protective cover for multi-plug comparison.
Decision CheckChoose by socket count, whether you need digital display, whether height adjustment is needed, and how many spark plugs you want to compare at once.
Click to enlargeRelated Products
Related Products
Compare related AUTOOL spark plug tester models by socket count, RPM adjustment, digital display, and comparison testing needs.
- Select options This product has multiple variants. The options may be chosen on the product page
AUTOOL SPT101 Spark Plug Tester Spark Plug Checker
From US$40.00 - Select options This product has multiple variants. The options may be chosen on the product page
AUTOOL SPT105 Spark Plug Tester Tool Adjustable Spark Tester
From US$33.00 - Select options This product has multiple variants. The options may be chosen on the product page
AUTOOL SPT301 Car Spark Tester Automotive Diagnostic
From US$59.00 - Select options This product has multiple variants. The options may be chosen on the product page
AUTOOL SPT360 Spark Plug Tester Automotive Diagnostic
From US$59.00
Click to enlargeWhat Is In The Box
What Is In The Box
The package image shows the SPT101 main unit, retail box, user manual, and power adapter. Plug type or adapter version may vary by selected option or destination.
Main UnitAUTOOL SPT101 spark plug tester
Power AdapterAdapter shown in the package image; version may vary by plug option or region
DocumentationUser manual shown in the package image
Retail BoxAUTOOL SPT101 package box shown in the package image
ReminderRefer to the selected product option and final package image for exact plug version
Manual And Downloads
Manual And Downloads
Download the SPT101 user manual for safety warnings, specifications, product structure, operation instructions, maintenance guidance, warranty access, and return or exchange information.
Click to enlargeAUTOOL SPT101 User Manual
Open the PDF manual for operation, power, safety, maintenance, and warranty details.
Download ManualNeed Setup Confirmation?
Contact AUTOOL Store before ordering if you need to confirm spark plug fitment, plug version, power adapter, safety operation, or model selection.
Questions And Answers
These answers cover SPT101 usage, compatibility, RPM adjustment, safety rules, power supply, package contents, maintenance, and warranty support.
SPT101 is used to test spark plug performance and spark strength. It helps users visually compare spark output by simulating engine operating conditions.
SPT101 is suitable for most 12V gasoline vehicle and motorcycle spark plugs. For unusual, modified, or non-standard spark plugs, confirm fitment before testing.
Place the spark plug in tester socket A or B, close the protective cover, plug the adapter into the side power interface, connect power, turn the rotary switch clockwise, adjust the simulated RPM, and observe the spark condition through the cover.
Yes. SPT101 supports dual-hole simultaneous testing, which lets you compare two spark plugs side by side and observe differences in spark strength more efficiently.
The tester supports simulated speed adjustment up to 6000 RPM. After powering on, continue turning the rotary switch clockwise to adjust the working frequency. A higher simulated frequency may show stronger spark output.
The SPT101 manual specifies a power adapter input of 100-240V AC and output of 12V 1A DC. Use a compatible adapter and confirm the plug type for your region before ordering.
Use it carefully. Up to 1000V voltage may be generated during testing. Always close the protective cover before testing, do not touch the spark plug or test socket during operation, and power off the tester before inserting or removing spark plugs.
No. Do not pull out or insert the spark plug while the power supply is connected. Turn off the power first, then insert or remove the spark plug.
Refer to the Packing List image for the final package contents. The image shows the SPT101 main unit, retail box, user manual, and power adapter. Plug type or adapter version may vary by selected option or destination.
SPT101 is a compact dual-hole model with rotary RPM adjustment. SPT105 adds adjustable test hole height. SPT301 uses three-hole comparative testing with a digital display. SPT360 uses five-hole comparative testing with a digital display for users who need to compare more plugs at once.
Check connected parts regularly and tighten loose parts in time. Avoid rough surface wear, corrosive liquids, hot or humid storage, and non-ventilated storage areas. Keep the circuit and wires in safe condition and replace aging wires when needed.
AUTOOL provides a three-year warranty for the main unit from the date of receipt. Accessories included with the product are covered by a one-year warranty. Warranty support depends on the actual breakdown situation and eligible non-human damage cases.
Warranty And Contact
Warranty And Contact
For SPT101 setup, spark plug compatibility, plug type confirmation, adapter questions, safety operation, model comparison, warranty, or troubleshooting, contact AUTOOL Store directly.
Pre-Sales And Product Support
Use support if you need help confirming whether SPT101 is suitable for your spark plugs, which SPT model to choose, how to operate the tester safely, or what is included in your selected package.
- SPT101 / SPT105 / SPT301 / SPT360 model selection
- Spark plug compatibility confirmation
- Power adapter and plug version confirmation
- Protective cover and high-voltage safety operation guidance
- Packing List and accessory confirmation
- Manual, warranty, troubleshooting, and replacement support
Customer Reviews
Leave A Review
Ralph (verified owner) –
Great product has saved us a lot of time!
Packaged perfectly. It came relatively quickly. Works. Standard candles with 21mm nut are included. When whistles work, the current is small, the spark is thin, you need to look after the magnifying glass. For visual inspection, the sparking is suitable. The tester manufacturer should increase the power at least 1.5-2 times…
Paul (verified owner) –
Very good product, it is easy to test the spark plug, very convenient
Very good product, it is easy to test the spark plug, very convenient
Paul (verified owner) –
Spark plug tester
Very good product, it is easy to test the spark plug, very convenient