Yep! You guys are correct. The Brake Buddy has a black button that controls the sensitivity. Has seven red lights and the more lights lid up, the more sensitive the brake buddy will be.
The black knob is a air pressure regulator and you set that according to the weight of the toad vehicle. I have mine set at forty pounds and the sensitivity I have it set at five lights.
So yes I was wrong on how to set the sensitivity. I had forgotten about the black button since I hardly ever adjust it since I bought it new in 2003. I was thinking that the red lights were adjusted by the big screw type knob for adjusting the air pressure.
Thanks for setting me straight. LOL