#1 Home Improvement Retailer

Diagnostic 12/24 Pro Test Kit

Apply Now
Save up to $100 on your qualifying purchase.
Apply for a Home Depot Consumer Card
  • Designed for convenient go or no-go testing
  • Used for most common automotive relays
  • Kit includes 5 new test adapters
  • View More Details
How to Get It

Frequently Bought Together


Product Overview

Relay Buddy 12/24 is a quick go/no-go tester for the most common automotive relays. This new version Relay Buddy tests both 12-Volt and 24-Volt relays. If the relay fails the test, 3 different trouble codes will advise you of the possible causes for the failed relay. In kit form, #193 Relay Buddy 12/24 tests 5 different relay types.
  • Tests both 12-Volt and 24-Volt relays, 4 and 5 pin
  • Pro test kit includes 5 new test adapters for shielded and new relay types
  • Cycles relay 10 times - good is green light - bad is red light and 1 of 3 diagnostic codes
  • Tester uses 12-Volt or 24-Volt power from the vehicle battery



No Additional Features
General Part Type
Vehicle Diagnostic Tool
Number of Pieces Included
Shop Equipment Product Type
Automotive Electrical Tester

Questions & Answers

Typical questions asked about products:

  • Is the product durable?
  • Is the product easy to use?
  • What are the dimensions of the product?

Customer Reviews

  • 5
    out of 4 reviews
  • 100%recommend this product
Filter by:
Showing 1-4 of 4 reviews
    Rating provided by a verified purchaser...
    Rating provided by a verified purchaser
    • Verified Purchase
    Does exactly what it’s meant to do! ...
    Does exactly what it’s meant to do!
    • Verified Purchase
    Just what I needed
    Worked great just. What I wanted, and glad I got it
      • Recommended
      Showing 1-4 of 4 reviews