Description
Comparison points and tradeoffs
When comparing Roadmaster 9530 Wireless Universal Supplemental Braking System Monitor with other Aftermarket Systems options, use this source-backed detail as the primary discriminator: The best upgrade or replacement monitor available!
Use this second fact to evaluate the tradeoff: Automatic operation — activates only when the vehicles are connected for towing. A third point to compare across alternatives is: Exceptional range and reliability — line-of-sight transmission confirmed to 1,000 feet; proprietary send/repeat circuitry confirms each signal at 100 percent reception.
Alternative-selection boundary
Choose an alternative when its stated identifiers, application, package, or specifications better match the requirement; no unverified competitor claim is introduced here.
Complete source-backed product details
The best upgrade or replacement monitor available! Truly universal; works with all braking systems that depress the brake pedal Exceptional range and reliability. Line-of-sight transmission confirmed to 1,000 feet; proprietary send/repeat circuitry confirms each signal at 100 percent reception. Protects the towed vehicle’s brakes and reports any braking activity to the motorhome monitor; includes a low-battery alert, extended braking and breakaway alarms, and five other audio and/or visual alarms and system status notifications 30-minute installation, all at the towed vehicle; simply plug the motorhome monitor into any 12-volt outlet. Automatic operation, activates only when the vehicles are connected for towing
Source product highlights
- Truly universal — works with all braking systems that depress the brake pedal
- Exceptional range and reliability — line-of-sight transmission confirmed to 1,000 feet; proprietary send/repeat circuitry confirms each signal at 100 percent reception
- Protects the towed vehicle’s brakes — reports any braking activity to the motorhome monitor; includes a low-battery alert, extended braking and breakaway alarms, and five other audio and/or visual alarms and system status notifications
- 30-minute installation, all at the towed vehicle; simply plug the motorhome monitor into any 12-volt outlet
- Automatic operation — activates only when the vehicles are connected for towing




Customer –
Towed a jeep behind our 40 foot motor home and the transmitter in jeep didn’t always stay connected to receiver I MH. Had to monkey with mounting locations… ultimately sticking both units to driver’s side windows in order to keep some connection. The breaking indicator on the receiver sometimes doesn’t light up when braking. I’ve learned to not question the supplimental brake but rather the connectivity of this product.
WN –
I like monitoring my towed vehicle behind the motorhome for brake application and breakaway. Two issues I have 1)the units will loose communication sometimes rendering it useless. Have to stop and typically power one or the other off & on. 2)When turning in to tow I have to teach the units requiring me to take the motorhome unit to the car and re-teach. Only takes a minute but is annoying. Sadly I do not see a better option that will monitor both brakes & breakaway.
Cathy W. –
It’s probably a good product, but it does not fit my automobile. Can I still return it?
Joe From Atlanta –
It does exactly what it is supposed to do. Installed in my large RV with tow vehicle 50 feet back from the monitor. Good signal. Works well.