A hydraulic brake device for a vehicle includes a master cylinder having a master piston and an auxiliary piston for assisting the actuation of the master piston. The system further includes an illumination source configured to scan in two or three dimensions relative to the sensor array and illuminate the sample at a plurality of different locations. The upper housing may be moved from a closed use position to a partially open, forward position allowing a user to access the power button of laptop and to a fully open position where the laptop may be removed.