Brake Controllers for activating electric trailer brakes on trailers that works off of the brake signal in the tow vehicle.
Tekonsha Primus For use with trailers with 1 to 4 axles, continual diagnostics check for proper connection, innovative dash mounting clip and quick disconnect make it easy to remove and store when not in use. $139.99
Redline TA1200 For use with up to 3 axles with easy to read two digit power display. $119.95
Tekonsha Voyager Great entry level controller, basic functions are easy to use, LED indicator for ensuring a positive connection. $99.95