I would think the highly desired proportional nature of the P2 or P3 would not be duplicated in a $22.00 controller signal. And I would also want to know how the ability to fine tune the amount of signal (pressure) being sent to the trailer brakes is adjusted. Comes in real handy when going uphill and downhill in certain parts of the country. You don't want binary braking back there.
You could start here:https://www.etrailer.com/comparison.aspx?pc=HA81790&pc2=90885
These guys are quite helpful on the phone as well.
You could start here:https://www.etrailer.com/comparison.aspx?pc=HA81790&pc2=90885
These guys are quite helpful on the phone as well.
