Professional Voltage Tester Battery Checker

OBDMonster Intelligent Car Relay Tester – 12V/24V Automatic Diagnostic Tool

Effortlessly diagnose automotive relay issues with the OBDMonster Intelligent Relay Tester, a professional-grade tool designed for fast, accurate, and safe testing of 4-pin and 5-pin relays. Perfect for mechanics, electricians, and DIY car owners, this device simplifies troubleshooting and saves valuable repair time.

Key Features:

✔ Intelligent Automatic Detection
With one-button operation, the tester automatically identifies 12V/24V relays and displays real-time status (open/close function). No manual setup required.

✔ Wide Compatibility
Supports over 20 common automotive relay types, compatible with both 4-pin and 5-pin configurations, suitable for most vehicles and repair needs.

✔ Portable Wireless Design
Powered directly by car battery clips—no external power source needed. Ideal for workshops and on-site mobile testing.

✔ Safe & Non-Invasive Testing
Advanced detection technology ensures the internal relay circuit is not damaged, providing safe and reliable diagnostics.

✔ Fast & Accurate Results
Quickly identifies relay faults and function status, helping you locate issues in seconds.

Specifications:

• Brand: OBDMonster
• Voltage Support: 12V / 24V
• Relay Types: 4-pin / 5-pin
• Certification: CE
• Power Supply: Battery clip connection (no built-in battery)
• Origin: Mainland China
• Use: Automotive relay diagnostic tool

How to Use:

1. Connect red clip to battery positive (+)
2. Connect black clip to battery negative (–)
3. Insert relay into correct socket
4. Select pin configuration
5. Press “Test” to start diagnosis
6. View LED indicator results (real-time status)

Important Notes:

• Ensure battery voltage matches relay requirements (12V or 24V)
• Incorrect voltage may affect test results
• Use correct pin configuration for accurate detection

Why Choose This Tool?

Save time, reduce repair costs, and eliminate guesswork. The OBDMonster Relay Tester gives you professional-level diagnostics in seconds, making it a must-have tool for every garage or car owner.

Package Includes:

• 1 × OBDMonster Relay Tester