Intella-Stop Ultra Brake Controller for 1 to 4 Axle Trailers:

This powerful brake controller features new motion sensor technology similar to what's used in the aerospace industry.
A digital display depicts voltage delivery to the trailer during braking and displays continual diagnostics, checks for proper connection, shorted magnet condition, open ground and much more. A unique pocket mount allows for flexible mounting options (standard mounting bracket included).
The Intella-Stop Ultra Brake Controller includes a 3ft. pigtail connector for ease of connection when using a vehicle's brake control wire harness. A quick and easy disconnect feature allows users to remove the control when not in use and store in a supplied protective pouch.
The Intella-Stop Ultra meets National Highway Safety Administration (NHTSA) regulations regarding to vehicle/trailer light activation. It also offers a limited lifetime warranty (some conditions apply).
Note: Not designed to for use with electric/hydraulic trailer brake systems. A Lifetime Limited Warranty is in effect from the date of purchase.
Note: Note note recommended for use with BMW X5 Sport Utility Vehicles.