Brigade BS-4000W Backscan Ultrasonic Detection System – A3744. Ultrasonic Obstacle Detection Systems. 2.5m detection range - outser sensors 2.5m/0.6m (selectable via dip switch). 4 Sensor system. However, despite an increase in all-round visibility, collisions with other vehicles, fixed objects, cyclists, workers and even pedestrians, remain high.
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