In this option, low-pressure servo joysticks HR are mounted in the cabin, while the main valve block with a power unit is located at the crane. The movements of the crane arms are proportionally controlled, and the grapple and telescope are operated electrically from the buttons on the joysticks. The quick coupling panel option allows for fast detachment of the trailer from the tractor without removing the joysticks from the cabin. It collaborates with a hydraulic unit with constant performance or with power from the tractor hydraulics (a variable performance pump is available in the HR-LS system). The system is standardly equipped with an additional high-pressure filter. The main advantage over HE control is the placement of the valve block on the crane column instead of in the tractor cabin. The joysticks themselves routed to the cabin, are easier to install independently and can be set in a much more ergonomic position compared to HE / STD control. Possible in cranes 2554 and bigger