Lrichy Proportional Trailer Brake Controller Kit 1–4 Axles — Self-Leveling, LED Diagnostics

The Lrichy 90885 is a proportional electric trailer brake controller kit that automatically matches trailer braking to your tow vehicle’s deceleration for smooth, reliable stops on 1–4 axle trailers.

This complete kit delivers advanced proportional braking for electric and electric-over-hydraulic systems, combining automatic sensor-based modulation, a manual override, multi-level boost, and on-board diagnostics. Built to suit boat trailers, RVs, utility trailers and cargo haulers, the unit mounts on or under the dash with self-leveling ability and includes hardware and a quick-disconnect for easy removal and storage.

How does the proportional sensing improve towing control?

The controller reads your tow vehicle’s deceleration via internal sensors and applies braking force to the trailer in direct proportion, reducing jolt and trailer sway during stops. That dynamic response keeps braking consistent whether you’re slowing gradually or performing an emergency stop.

• Sensor-driven braking that mirrors vehicle deceleration
• Smoother stops with less trailer push or snap
• Proportional reverse braking with ability to disable

What adjustments and features help with heavier or variable loads?

For heavier trailers, the Lrichy 90885 includes a stepped boost function to increase braking output by up to three levels and a manual override for instant trailer braking when needed. A bright LED display shows voltage and status so you can confirm braking power and spot potential issues quickly.

• Three-level boost for added stopping power
• Manual override for emergency or controlled braking
• LED readout for real-time voltage and diagnostics

Is installation flexible and what mounting options are available?

The controller is designed for versatile installation: it self-levels within a 90-degree vertical range and fits on or under the dash using supplied brackets and a snap-in dash pocket. A quick-disconnect plug makes it simple to remove and store the controller when not towing.

• Self-leveling up to 90° vertical range—no post-install adjust
• Includes brackets, dash pocket, and mounting hardware
• Quick-disconnect connector for fast removal and storage

What diagnostics and protections are built into the system?

Continuous onboard diagnostics monitor connections and trailer magnets to alert you to shorts, open circuits, or other faults before they affect towing performance. Power-saving modes reduce battery drain when the system is idle, and the unit supports electric and electric-over-hydraulic brake setups.

• Automatic checks for wiring faults and magnet conditions
• Power-save mode to minimize battery consumption
• Compatible with electric and electric-over-hydraulic brakes

Who this is for: The Lrichy 90885 is aimed at drivers who tow frequently and need dependable, customizable braking control—overlanders, boat owners, RV drivers, and contractors hauling cargo. It’s especially useful for anyone upgrading from time-delayed controllers or seeking automatic proportional braking across 1–4 axles, plus owners who value diagnostic feedback, flexible mounting, and easy removal for storage. The kit ships with all necessary hardware and a two-year warranty for added confidence on every trip.