The Proviso™ 88P is an electronic lift axle control system for trailers, designed to automatically lift and lower the axle at the correct times to avoid safety and overweight issues. The 88P senses the weight, direction, and speed of the trailer and controls the lift axle’s position. The 88P is intended for self-steering lift axles.
The 88P also provides controls for an in-cab switch and light, an axle position sensor, a speed based steering lock, and a max load indicator. The 88P can be used to broadcast the the lift axle information, using a 3rd party device.