How Does Remote Brake Monitor Work on Stay-IN-Play DUO

Question:

How does the remote monitor work? If it just looks at toad brake light then it doesnt necessarily mean the unit is applying the brakes. I mean the toad brake lights are going to turn on whenever RV brake lights are on. I think the monitor should only light if the Demco is operating... Right.

asked by: Mike C

Helpful Expert Reply:

The Stay-IN-Play DUO, # DM86VR, ties into the brake light switch on your towed car so that you'll be notified only when your towed car's brake pedal is being engaged.

There is an inertia-sensing mercury switch inside the DUO's controller is what makes this system proportional. This switch reads and interprets changes in forward momentum that occur when your towing setup decelerates. As your RV and car slow down, this switch sends a signal to activate your towed vehicle's brake pedal with an intensity that matches the deceleration of your RV. The result is even braking across your towing setup. Whether you lightly tap the brakes in your RV or apply them hard in a panic situation, your towed car's brakes will be applied proportionately.

Please note the linked product review and installation video below. This walks through the entire set-up in detail.

expert reply by: Michael R