The apparatus under discussion provides a means to determine the appropriate level of electrical current sent to a trailer’s electric brakes, ensuring optimal synchronization between the towing vehicle’s braking system and the trailer’s. As an illustrative example, this tool might suggest a setting of “6.0” which dictates that the trailer’s brakes engage with a moderate level of intensity relative to the tow vehicle’s brake application.
Proper adjustment of this value is critical for safe and controlled towing. Insufficient brake force on the trailer can lead to extended stopping distances and increased risk of jackknifing. Conversely, excessive braking power can result in premature wear of the trailer’s brakes or even cause the trailer to sway. Historically, users relied on experience and manual adjustments, but modern devices and techniques offer a more precise and reliable method for determining the correct setting, contributing to enhanced safety on roadways.