Trailer Electrical Testing
DUNARRI TEDS
Trailer Electrical Testing Devices
Fast, purpose-built tools for verifying trailer lighting, brake, and electrical circuits — without guessing or walking back and forth.
Choose the Right Tester
One quick chart to decide — then scroll down to see all available products.
| Feature / Use Case | TEDS View product |
TEDS PRO View product |
|---|---|---|
| Typical user | DIY owners, small shops | Professional shops, fleets |
| Connector compatibility | 7-way RV + 4-flat (with adapters) | 7-way RV + 4-flat (with adapters) |
| Lighting circuit testing | ✔ | ✔ |
| Function Controls | Rotary dial (select a circuit) | Dedicated switches (one per function) |
| How many functions can be tested together | One | Any number at once |
| Live amp / volt display | — | ✔ |
| Auto-Test (one-person testing) | — | ✔ |
| Protection (breaker / overload) | ✔ | ✔ |
| Brake circuit testing | Basic brake power check | High-current brake power test (20A max) |
| Electric-over-hydraulic brakes | — | ✔ |
| Best for | Quick pre-trip checks + occasional troubleshooting | In-depth diagnostics + repeated shop use |
| Base price | Fetching price... — | Fetching price... — |
Choose TEDS if…
You want a simple, rugged tester for quick checks or occasional troubleshooting.
Choose TEDS PRO if…
You want 20A capacity, faster diagnostics, real-time readings, and one-person testing.
Need Heavy-Duty / Semi?
TEDS PRO Semi Coming soon! If you can't wait you can use an adapter with TEDS PRO.
We are Dunarri - WILD POWER SPORTS.
