AUTOOL SPT101Product OverviewThe 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 Play2Test Holes100-240VAdapter Input12V 1ADC Output3 YearsMain Unit Support Click to enlarge Click to enlargeBefore You Order And UseBefore You Order And UseSPT101 is a high-voltage spark plug testing device. Read the protective cover, power, and plug handling rules before connecting the tester.Close The Protective CoverAlways close the transparent protective cover before testing. The tester is designed for observation through the cover, not open-cover operation.High Voltage WarningUp 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 HandlingDo 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 AdapterUse a compatible power adapter. The manual specifies 100-240V AC input and 12V 1A DC output for the SPT101 tester.Supported Spark PlugsSPT101 is suitable for most 12V gasoline vehicle and motorcycle spark plugs. Confirm fitment before testing unusual or non-standard spark plugs.Dry Storage RecommendedStore the tester in a dry place when not in use. Avoid hot, humid, non-ventilated, or corrosive environments.Care ReminderCheck 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 FeaturesKey FeaturesSPT101 focuses on simple spark plug comparison, adjustable simulated engine speed, visual test status, and safer testing with a protective cover.Dual-Hole Simultaneous TestingTest two spark plugs at the same time and compare spark performance more efficiently than single-plug inspection.Adjustable Working FrequencyTurn the rotary switch to adjust the simulated working frequency. The tester supports engine simulation up to 6000 RPM.Engine Condition SimulationThe tester simulates actual engine operating conditions so users can evaluate spark strength and plug performance visually.Protective Cover DesignThe transparent cover helps protect maintenance personnel while still allowing clear observation of the spark plug test status.Plug-And-Play OperationPlace the spark plug, close the cover, connect power, adjust the switch, and observe the spark condition through the cover.3-Year Main Unit SupportAUTOOL provides 3-year main unit warranty support for eligible non-human damage cases, with accessory and troubleshooting support available. Click to enlarge Click to enlargeSpecificationsSPT101 SpecificationsThe SPT101 uses a compact dual-socket layout, rotary frequency control, power and working indicators, protective cover, and side power interface.Power And ControlProductAUTOOL SPT101 Spark Plug TesterPower Adapter Input100-240V ACPower Adapter Output12V 1A DCPower InterfaceSide power interfaceControlRotary switchWorking FrequencyUp to 6000 RPMTesting LayoutTest Holes2 spark plug socketsTesting TypeDual-hole simultaneous comparison testingIndicatorsPower indicator and working indicatorsSafety CoverTransparent protective coverSize And WeightMain Unit Dimensions145 × 85 × 113mmPackage Dimensions165 × 100 × 118mmWeight354gApplicationMost 12V gasoline vehicle and motorcycle spark plugs Click to enlarge Power And ControlProductAUTOOL SPT101 Spark Plug TesterPower Adapter Input100-240V ACPower Adapter Output12V 1A DCPower InterfaceSide power interfaceControlRotary switchWorking FrequencyUp to 6000 RPM Testing LayoutTest Holes2 spark plug socketsTesting TypeDual-hole simultaneous comparison testingIndicatorsPower indicator and working indicatorsSafety CoverTransparent protective cover Size And WeightMain Unit Dimensions145 × 85 × 113mmPackage Dimensions165 × 100 × 118mmWeight354gApplicationMost 12V gasoline vehicle and motorcycle spark plugs How To UseHow To UseSPT101 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 PlugPlace the spark plug into tester socket A or B. Use both sockets when you need side-by-side comparison testing.Close The Protective CoverCover the transparent protective cover before testing to help keep the operator safer during spark observation.Connect Power And StartPlug the power adapter into the side power interface, connect power, and turn the rotary switch clockwise to power on the tester.Adjust RPM And ObserveContinue turning the switch clockwise to adjust simulated RPM. Observe spark plug status through the protective cover. Click to enlargeUse NotesThe 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 ComparisonProduct ComparisonCompare 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 ProductsRelated ProductsCompare 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 Add to wishlist Add to compare Quick view iconQuick view Spark Plug TesterAUTOOL SPT101 Spark Plug Tester Spark Plug CheckerRated 0 out of 5(0) From US$40.00 Select options This product has multiple variants. The options may be chosen on the product page Select options This product has multiple variants. The options may be chosen on the product page Add to wishlist Add to compare Quick view iconQuick view Spark Plug TesterAUTOOL SPT105 Spark Plug Tester Tool Adjustable Spark TesterRated 0 out of 5(0) From US$33.00 Select options This product has multiple variants. The options may be chosen on the product page Select options This product has multiple variants. The options may be chosen on the product page Add to wishlist Add to compare Quick view iconQuick view Spark Plug TesterAUTOOL SPT301 Car Spark Tester Automotive DiagnosticRated 0 out of 5(0) From US$59.00 Select options This product has multiple variants. The options may be chosen on the product page Select options This product has multiple variants. The options may be chosen on the product page Add to wishlist Add to compare Quick view iconQuick view Spark Plug TesterAUTOOL SPT360 Spark Plug Tester Automotive DiagnosticRated 0 out of 5(0) From US$59.00 Select options This product has multiple variants. The options may be chosen on the product page Click to enlargeWhat Is In The BoxWhat Is In The BoxThe 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 testerPower AdapterAdapter shown in the package image; version may vary by plug option or regionDocumentationUser manual shown in the package imageRetail BoxAUTOOL SPT101 package box shown in the package imageReminderRefer to the selected product option and final package image for exact plug versionManual And DownloadsManual And DownloadsDownload 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 ManualOpen 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. Email[email protected] WhatsApp 86 189 2647 7404Questions And AnswersThese answers cover SPT101 usage, compatibility, RPM adjustment, safety rules, power supply, package contents, maintenance, and warranty support. What Is AUTOOL SPT101 Used For? SPT101 is used to test spark plug performance and spark strength. It helps users visually compare spark output by simulating engine operating conditions. Which Spark Plugs Can SPT101 Test? SPT101 is suitable for most 12V gasoline vehicle and motorcycle spark plugs. For unusual, modified, or non-standard spark plugs, confirm fitment before testing. How Do I Use The SPT101 Spark Plug Tester? 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. Can SPT101 Test Two Spark Plugs At The Same Time? 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. What Is The Working Frequency Range? 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. What Power Supply Does SPT101 Need? 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. Is SPT101 Safe To Use? 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. Can I Insert Or Remove Spark Plugs While Power Is Connected? 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. What Is Included In The Package? 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. What Is The Difference Between SPT101, SPT105, SPT301, And SPT360? 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. How Should I Maintain And Store SPT101? 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. How Long Is The Warranty? 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 ContactWarranty And ContactFor 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 SupportUse 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 selectionSpark plug compatibility confirmationPower adapter and plug version confirmationProtective cover and high-voltage safety operation guidancePacking List and accessory confirmationManual, warranty, troubleshooting, and replacement support Email Support[email protected] WhatsApp Support 86 189 2647 7404