AUTOOL SPT301 Spark Plug Tester – 3 Hole Digital, 9000 RPM

AUTOOL SPT301 Digital Spark Plug Tester

Digital Spark Plug Tester

The AUTOOL SPT301 is a compact bench spark plug tester for checking plugs off the engine. Fit a known-good reference plug and up to two plugs to test, set the firing rate, and compare their sparks side by side through the clear safety cover.

It's ideal for home mechanics, motorcycle and small engine work, or anyone who tests a few plugs at a time. For testing a full set at once, see the 5-position AUTOOL SPT360.

AUTOOL SPT301 Digital Spark Plug Tester – 3-Position Bench Tester, 200–9000 RPM

Main Features

3 test positions: 1 reference plug and up to 2 test plugs, for side-by-side comparison.
Adjustable firing rate: 200–9000 rpm simulated, set with +/- buttons.
LCD display: backlit screen shows the selected speed.
Adjustable height: fits long-reach plugs.
Clear safety cover: watch the spark while keeping hands away from high voltage.
Compact and light: 200 × 118 × 118 mm, 500 g.
Mains powered: runs from a 240V outlet via the included adapter.

Important Notes

Plugs fire in open air. This is a comparison test, not a test under cylinder pressure. Confirm suspected ignition faults on the vehicle.
Spark voltage reaches tens of thousands of volts. Keep the cover closed and switch off before fitting or removing plugs.
Spark plugs are not included.

Package Includes

1 × AUTOOL SPT301 Spark Plug Tester
1 × Power Supply Cable
1 × User Manual

AUTOOL SPT301 Professional Digital Spark Plug Tester

Tests up to three spark plugs simultaneously

Simulates engine speeds from 200–9000 RPM

Digital RPM display for precise monitoring

Adjustable spark plug socket height

Compatible with automotive and motorcycle spark plugs

Ideal for comparative spark plug testing

Protective safety cover for safe operation

Compact and workshop-friendly design

Suitable for professional diagnostics

Backed by a 3-year warranty

AUTOOL SPT301 digital spark plug tester

AUTOOL Spark Plug Tester Comparison

Comparison Table: AUTOOL SPT301 Spark Plug Tester | AUTOOL SPT360 Spark Plug Tester

	AUTOOL SPT301	AUTOOL SPT360

Testing Performance
Working Principle	Digital Sensing	Digital Sensing
Simulated RPM	200-9000rpm	200-9000rpm
Test Hole Position	3	5
Working Condition Simulation	✓	✓
Adjustable Simulated RPM	✓	✓
Design & Compatibility
Adjustable Hole Position Height	✓	✓
Supports Testing of Long Spark Plugs	✓	✓
Safety Protection Cover	✓	✓
Power & Operating Conditions
Input Voltage	110V/220V	110V/220V
Ambient Temperature	0-45°C	0-45°C
LCD Digital Backlit Screen	✓	✓
	LEARN MORE	LEARN MORE

AUTOOL SPT301 Technical Specifications

Test Positions	3 (1 reference + 2 test plugs)
Simulated Firing Rate	200–9000 rpm
Display	Backlit LCD
Plug Height	Adjustable, suits long-reach plugs
Compatible Plugs	Common automotive and motorcycle spark plugs
Power	220–240V AC mains via external adapter (DC 12V output)
Operating Temperature	0 °C to 45 °C
Dimensions	200 × 118 × 118 mm
Weight	500 g
Safety	Transparent protective cover
Warranty	3 years main unit, 1 year accessories (manufacturer)

AUTOOL SPT301 three socket spark plug tester

Delivery

99% of purchases are dispatched from our Melbourne warehouse within 24 hours of payment. Every parcel is shipped with Australia Post e-Parcel, complete with tracking and signature on delivery.

Need it sooner? Express shipping is also available—check if your postcode is in the Next Day Delivery network.

Returns

Shop with confidence. We offer a 30-day money back guarantee on all orders. If you’ve had a change of mind, simply return the item in re-original condition and we’ll make it right.

Warranty

All AZscanners products are backed by a 12-month warranty (unless otherwise stated). We stand by the quality of our tools and will repair or replace your item if a covered fault arises.

Buying your scan tool should feel easy, safe, and backed by a team you can trust.

That’s why thousands of mechanics, fleets, and car owners across Australia choose AZscanners. Here’s our promise to you:

Trusted Since 2013

We’ve been Australia’s go-to supplier of premium diagnostic scan tools for over a decade. From workshops and mobile mechanics to DIY users, we’ve built our reputation on quality, reliability, and real support.

30-Day Money Back Guarantee

Changed your mind? No problem. You have 30 days to return your item in its original condition for a full refund. It’s our way of making your purchase completely risk-free.

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Every product in our range is hand-picked for performance, compatibility, and durability. Whether you’re after a professional-grade scan tool or an easy solution for home use, we’ve got you covered.

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We don’t just sell scan tools — we support them. Our team of technicians is here to answer your questions before and after purchase, so you’re never left on your own.

Fast & Reliable Shipping

99% of orders are shipped within 24 hours (from our Melbourne warehouse) with tracking and signature included. Need it quicker? Express delivery is available.