Best Overall · 1 of 6
Queencar Electric Trailer Brake Controller 51180

- Portable 7-way, 1 to 4 axles
- Up to 8 electric brakes
- App pairing, 3-axis sensor
Our take
Seen on paper, it is the most expensive pick here and carries the widest axle range of the portable units.
Why it made the shortlist
The Queencar is designed for trailers with 1 to 4 axles and up to 8 electric brakes, including travel trailers and campers. It connects directly between the tow vehicle and the trailer.
Scan the QR code to download the app for pairing and control, and a built-in 3-axis motion sensor handles the braking response. Plug-and-play installation skips dash work.
A capable answer for a larger travel trailer.
What works
- Handles 1 to 4 axles
- No dash wiring
- App pairing with QR code
- 3-axis motion sensor
Watch out for
- Needs a phone to adjust






