CURT 51200 Echo In-Line Electric Trailer Brake Controller with Bluetooth® Enabled Smartphone Connection, Proportional #51200

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The CURT Echo in-line trailer brake controller is a Bluetooth enabled brake controller device that wirelessly connects to your smartphone and allows you to control and monitor all trailer brake activity right from your own device.

Quick Facts:

  • Bluetooth connection to control all brake settings from your smartphone
  • Custom-designed app monitors brake activity and sends status updates
  • Plugs in behind existing 7-way socket with USCAR connectors
  • Waterproof enclosure seals and protects circuits against the elements
  • Triple-axis, motion-sensing accelerometer for highly responsive, smooth stops
  • Stores multiple trailer profiles
  • Operates 2-8 trailer brakes at a time (1-4 axles)
  • Multi-color LED indicator for easy setup and troubleshooting
  • Clear, in-app warning system for voltage recognition and no-brake situations
  • Downloadable app available for Apple iOS and Android OS
  • Sleep mode feature included to reduce power drain
  • Automatic calibration reduces setup requirements
  • Allows incoming calls to be received while app is running
  • Compatible with low-volt, PWM, ABS, cruise control and electric over hydraulic
  • Built-in reverse-polarity and short-circuit protection
  • Limited lifetime warranty
  • Compatible with Echo manual override button #51189 (sold separately) for hands-free driving
  • If Bluetooth connection is lost, the brake controller will continue to function safely, using the most recently programmed settings. Not compatible, but will not interfere, with Apple CarPlay or Android Auto.
  • CURT part number: 51200

The CURT Echo in-line trailer brake controller is a Bluetooth enabled device that wirelessly connects to your smartphone and allows you to control and monitor all trailer brake activity right from your device. The Echo brake controller brings your towing experience into the modern age. Powered by Bluetooth, it wirelessly connects to your smartphone without any extra modules required. Simply download the Smart Control app on your Apple iOS or Android OS device, plug the Echo into your vehicle behind the existing 7-way RV blade socket and you're ready to start towing (USCAR connection required). The app allows you to create multiple trailer profiles for different towing situations. The CURT Echo in-line brake controller operates with a tri-axis circuit for smooth stops going up or down a hill, and it is able to operate up to two to eight trailer brakes at a time (one to four axles). It is also compatible with cruise control and ABS brakes.


  • SMARTPHONE-READY - The Echo brake controller wirelessly syncs with Apple or Android smartphone, turning it into a brake controller interface with the Smart Control app (Warning: Avoid distracted driving. Only make adjustments when vehicle is stationary)
  • HIDDEN MAIN MODULE - To maintain powerful trailer brake operation without obstructing your vehicle dash, the computer module of this brake controller plugs in behind the existing 7-way RV blade socket at the rear of your vehicle
  • HIGHLY RESPONSIVE - Echo uses a triple-axis accelerometer to provide smooth, safe braking. It maintains responsive braking, even when your phone screen is locked, receives incoming calls or if the Bluetooth connection is lost
  • VERSATILE - This electronic trailer brake controller works on virtually any trailer with 1 to 4 axles (2 to 8 brakes). It is also fully compatible with cruise control, anti-lock brakes, low-voltage systems
  • SIMPLE SETUP - The Echo in-line brake controller easily plugs into your vehicle using the existing 7-way RV blade. It T's into the wiring harness and retains use of the socket for connecting a trailer (USCAR socket required for installation)

Warning: Cancer and reproductive harm.
More Information
SKU 2022326380
Brand Curt™
Quantity In Package 1
Material Type Plastic
Country of Origin MEX
Warranty Term One-Year Limited Warranty
Unit of Measure EA
UPC 612314052622
Manufacturer Reference Number 51200

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