12V Car Relay & Battery Tester

🔧 12V Car Relay & Battery Tester with LED Indicator

Check your car’s electrical system in seconds — fast, simple, and reliable ⚡

This universal 12V relay tester helps you quickly diagnose relays and battery connections without complicated tools. Perfect for both DIY users and professionals.

✨ Key Features:

• ⚡ Fast Relay Testing
Quickly test 4-pin and 5-pin relays with one-button operation

• 💡 LED Indicator System
Clear visual signals show relay status instantly — no guesswork

• 🔋 12V Universal Compatibility
Works with most cars, trucks, and automotive systems

• 🧰 Alligator Clips Included
Secure connection to battery terminals for stable testing

• 🖐️ Simple One-Button Control
Just connect and press — no technical skills needed

• 🛠️ Compact & Durable Design
Lightweight, portable, and built for everyday use

🚗 Perfect For:

• Car diagnostics
• Relay troubleshooting
• Electrical system checks
• DIY repairs and garage work

📦 Package Includes:
1× 12V Relay Tester with Clips

💡 Save time and avoid costly repairs — test your relays instantly with ToolZone quality.