AUTOOL SPT301 Digital Small Engine Ignition Spark Plug Tester

Precision Testing
– High-accuracy digital display detects weak or faulty spark plugs instantly, ensuring optimal engine performance.
Durable Construction
– Heavy-duty ABS housing with reinforced rubber grips withstands shop conditions and repeated use.
Adjustable Gap Tool
– Built-in adjustable gap gauge (0.6-2.0mm) allows quick calibration for various spark plug types.
Wide Compatibility
– Works with 12V/24V automotive systems, small engines (lawnmowers, chainsaws), motorcycles, and marine engines.
Battery-Powered Convenience
– Operates on 2x AAA batteries (included) for cordless testing anywhere, anytime.
Professional-Grade Diagnostics
– LED indicator and audible alarm confirm spark integrity, ideal for mechanics and DIY enthusiasts.
Compact & Portable
– Slim design fits in toolboxes or pockets for on-the-go troubleshooting.