IZI1

Inline Spark Tester

‎4.7/5
36 reviews
Home Depot
USD 13.29

at Home Depot

Updated: Oct 25, 2026

About this item

Quickly diagnose problems with all ignition systems. Connect the tool between the spark plug and the plug wire. The tool is double-ended to offer a straight boot and a 90° boot on one tool. With the engine running, the tool flashes a mirror image of ignition spark.

  • Features
    • Offers an easy visual check of the ignition system
    • Aluminum construction for longevity
    • Lightweight and compact for easy portability

Specifications

Returnable

90-Day

Shop Equipment Product Type

Spark Plug Tester

Manufacturer Warranty

Lifetime warranty does not cover abuse

Product photos are for illustrative purposes only and are exemplary. The colors, inscriptions, parameters, dimensions, sizes, functions, and/or any other features of the original products may look different than in reality due to their visual characteristics, so please refer to the product features that are indicated in the product descriptions.

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