Best Overall · 1 of 5
CURT 51190 Echo Under-Dash Proportional Trailer Brake Controller

- Bluetooth, triple-axis accelerometer
- 2-8 brakes, 1-4 axles
- Stores multiple trailer profiles
Our take
Best for a tandem or triple-axle travel trailer where you want app control and a hardwired install.
Why it made the shortlist
The CURT 51190 Echo Under-Dash is a Bluetooth proportional controller with a triple-axis motion-sensing accelerometer. The listing says it operates 2-8 trailer brakes (1-4 axles), stores multiple trailer profiles, and uses a custom app that monitors brake activity and sends status updates.
Compared with the in-line Echo just below it, it mounts under the dash instead of behind the 7-way socket, which suits a driver who wants the module inside the cab. Against the mobile Echo below it, it covers up to four axles instead of two.
The cost is high, so weigh it against the third-party options at the bottom.
What works
- Covers up to four axles and eight brakes
- App monitors brake activity and sends alerts
- Stores multiple trailer profiles
- Mounts under the dash, out of the weather
Watch out for
- Costs far more than third-party plug-ins
- Needs a vehicle harness and under-dash install





