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A black JFIND JF107 universal 12V 24V relay tester device with various testing indicators and a relay connector.
A hand holds a black JF107 relay tester device, showing various types of relays it can test.
An intelligent relay tester device with a battery pack and testing probes for 12V and 24V relays.
A JFIND relay tester device showing flashing red and green indicator lights for relay fault diagnosis.
JFIND JF107 relay tester device showing various connectors and features
Diagram showing usage steps for an automotive relay diagnostic tester including battery connection and testing procedure
Comparison showing advantages of a flat design relay diagnostic tester over another model for insertion testing and larger pi
A black JFIND JF107 relay tester device with red indicators and a test button.
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Automotive Relay Diagnostic Tester

Regular price €29,99 Sale price €24,99

Why customers love it

Diagnose automotive relays with precision and confidence

Ensure your vehicle's critical systems function perfectly with this specialized diagnostic tool.

  • Accurately detects relay operation and functionality.
  • Operates across a broad voltage range for diverse automotive applications.
  • Provides clear visual feedback using intuitive LED indicators.
  • Helps verify the timing and consistency of relay action cycles.
  • Designed for easy, reliable use by technicians and DIY enthusiasts.
A black JFIND JF107 universal 12V 24V relay tester device with various testing indicators and a relay connector.

Why Choose Our Relay Tester?

High Accuracy Detection

Pinpoint relay issues with reliable detection of operation and functionality.

Broad Voltage Compatibility

Works effectively across a wide voltage spectrum common in automotive systems.

Instant Visual Feedback

Quickly interpret results using clear, unmistakable LED indicators.

Simplified Troubleshooting

Makes complex relay timing and consistency checks straightforward for all users.

Technical Details

Key Specifications

What you need to know about the diagnostic tool.

Function
Automotive Relay Diagnostic
Detection Capability
Relay Operation and Functionality
Feedback Mechanism
LED Indicators
Voltage Range
Broad Automotive Range

Our worry-free shopping promise

If your order arrives damaged, defective, or not as described, contact us within 14 days and we will make it right with a replacement or refund.

Frequently Asked Questions

Common questions about using the diagnostic tester.

Is this tester suitable for all vehicle types?

This tool is designed for general-purpose automotive relay checks and is suitable for a wide variety of vehicle systems.

How accurate is the diagnostic reading?

The tester is designed to detect relay operation and functionality accurately, providing reliable results for troubleshooting.

What kind of voltage range can it handle?

It operates with a broad voltage range, making it versatile for various automotive applications.

Is it easy for beginners to use?

Yes, the tool is designed to be easy to use for general-purpose automotive relay checks, making it accessible for DIY enthusiasts.

Shipping & returns

Shipping

  • Delivers to Germany (based on your selected country/region).
  • Estimated delivery: 3–15 business days after dispatch.
  • Shipping cost: Free.

Returns

You can request a return within 14 days after delivery. Standard returns have a €4.00 EUR (approximately $4.66 USD) flat-rate return shipping fee, deducted from your refund. Return shipping is free for items that arrived damaged, defective, or incorrect. Items should be unused and in original packaging where possible. Contact us before sending anything back.

Shipping policyReturn & refund policy

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