Discription
Stop Guessing. Start Diagnosing.
The RT01 Automotive Relay Tester takes the frustration out of electrical troubleshooting. Whether you're a professional mechanic or a weekend DIYer, this plug-and-play tool instantly tells you if a relay is good or bad — no complicated setups, no wasted parts.
Why You'll Love It:
- ✅ Works on 4-pin & 5-pin relays — the most common types in US vehicles
- ✅ Compatible with 12V–24V systems (cars, trucks, SUVs)
- ✅ Instant results: 🟢 Green = Good, 🔴 Red = Faulty
- ✅ Tests switching timing, contact performance & cycle stability
- ✅ Heavy-duty alligator clips connect directly to your battery
How It Works:
Clip to battery → Insert relay → Press TEST → Get your answer in seconds.
Specs at a Glance:
Model RT01 | Input: 11–25V DC | Supports relays ≥20Ω | Compact: 5.47 × 2.48 × 1.06 in | Cable: 16.5 in
Perfect for:
Auto repair shops, fleet maintenance, DIY mechanics & car enthusiasts.
