Engineered

Professional

High-Output

Trusted

Engineered

Professional

High-Output

Trusted

Engineered

Professional

High-Output

Trusted

Engineered

Professional

High-Output

Trusted

Engineered

Professional

High-Output

Trusted

Engineered

Professional

High-Output

Trusted

Engineered

Professional

High-Output

Trusted

Engineered

Professional

High-Output

Trusted

Engineered

Professional

High-Output

Trusted

Engineered

Professional

High-Output

Trusted

Relay Tester Tool

The Automotive Relay Tester Tool is a compact, easy-to-use device designed to quickly and accurately test 4-pin and 5-pin relays found in most vehicles. It simulates real operating conditions to identify weak, sticking, or faulty relay contacts that traditional multimeters can miss. With simple plug-in operation and clear pass/fail indicators, this tester eliminates guesswork and speeds up electrical diagnostics. Durable, portable, and reliable, it’s an essential tool for technicians and DIY mechanics who want fast, precise relay testing.

  • ★★★★★

    ''

    “Saved me hours of troubleshooting!”

    Mark R., ASE-Certified Mechanic

  • ★★★★★

    ''

    “Accurate, sturdy, and very helpful.”

    Victor S., Mobile Auto Electrician

  • ★★★★★

    ''

    A must-have tool for any shop!”

    David K., Shop Owner

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