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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

Voltage

Shipping Warehouse

Clear

☰ REQUEST BULK / B2B QUOTE

Secure checkoutFast supportBulk ready

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

AUTOOL SPT101 spark plug tester main product image with dual-hole testing and RPM adjustment features

AUTOOL SPT101 spark plug tester product image with protective cover

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

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.

AUTOOL SPT101 dual-hole simultaneous testing feature

AUTOOL SPT101 adjustable working frequency up to 6000 rpm

Specifications

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

AUTOOL SPT101 specifications and product structure diagram

Power 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

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.

AUTOOL SPT101 operation steps for spark plug testing

Use 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

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.

AUTOOL spark plug tester model comparison chart

AUTOOL SPT101 User Manual

Open the PDF manual for operation, power, safety, maintenance, and warranty details.

Download Manual

Need 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 7404

Questions And Answers

These answers cover SPT101 usage, compatibility, RPM adjustment, safety rules, power supply, package contents, maintenance, and warranty support.

What Is AUTOOL SPT101 Used For?

Which Spark Plugs Can SPT101 Test?

How Do I Use The SPT101 Spark Plug Tester?

Can SPT101 Test Two Spark Plugs At The Same Time?

What Is The Working Frequency Range?

What Power Supply Does SPT101 Need?

Is SPT101 Safe To Use?

Can I Insert Or Remove Spark Plugs While Power Is Connected?

What Is Included In The Package?

What Is The Difference Between SPT101, SPT105, SPT301, And SPT360?

How Should I Maintain And Store SPT101?

How Long Is The Warranty?

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

Email Support[email protected] WhatsApp Support+86 189 2647 7404

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Automotive Repair & Testing Equipment

Automotive Repair & Maintenance Equipment

Carbon Deposit Cleaning Equipment

Wheel and Tire Repair Equipment

Workshop Tool Storage Series

Electric Vehicle Charger Series

OBD Diagnostic Tools

Accessories

AUTOOL SPT101 Spark Plug Tester Spark Plug Checker

Product Overview

Before You Order And Use

Close The Protective Cover

High Voltage Warning

Power Off Before Handling

Use The Correct Adapter

Supported Spark Plugs

Dry Storage Recommended

Care Reminder

Key Features

Dual-Hole Simultaneous Testing

Adjustable Working Frequency

Engine Condition Simulation

Protective Cover Design

Plug-And-Play Operation

3-Year Main Unit Support

SPT101 Specifications

How To Use

Place The Spark Plug

Close The Protective Cover

Connect Power And Start

Adjust RPM And Observe

Use Notes

Product Comparison

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