Product Introduction
The Automotive Relay Tester Diagnostic Tool is a professional-grade device designed for quick and accurate testing of vehicle relays. Operating on 12V power with convenient battery clip connection, this tester is compatible with both 4-pin and 5-pin relays. It allows mechanics and DIY enthusiasts to efficiently diagnose relay function, identify faulty components, and ensure reliable electrical system performance.

Product Features
⚡ 12V Operation with Battery Clip
Powered directly from your vehicle's battery using the included battery clip, ensuring reliable testing without additional power sources.
🔌 Compatible with 4-Pin & 5-Pin Relays
Designed to test both standard 4-pin and 5-pin automotive relays, covering most relay types found in modern vehicles.
✅ Quick Relay Function Testing
Instantly verifies relay coil resistance, switching operation, and contact continuity to identify faulty relays in seconds.
🚗 Universal Automotive Application
Suitable for testing relays in cars, trucks, motorcycles, boats, and other 12V electrical systems.
🛠️ Easy-to-Read Indicators
Clear LED indicators display test results, making diagnosis simple even for beginners.

Product Specifications
- Product Type: Automotive Relay Tester
- Voltage: 12V DC
- Power Connection: Battery Clip with Wires
- Test Functions: Coil Resistance, Switching Operation, Contact Continuity
- Indicators: LED Status Lights
- Cable Length: 24 inches
- Weight: 8 oz

Packaging Includes
- 1 × Relay Tester Unit
- 1 × Battery Clip with Wires
- 1 × User Manual
✨ Test relays fast, fix with confidence—diagnose 4 and 5-pin relays in seconds!