EMX Industries has announced the launch of their Ultrasonic Vehicle Detector (USVD-4X) – a drive thru sensor designed to optimize operations and reduce cost. The USVD 4-X uses Triangular Planar Array technology which detects the vehicle on the location it is aimed at using four ultrasonic transducers. The technology is an alternative to sensors based on vehicle loop detector configurations which require a loop to be installed on the pavement. The USVD-4X is aim and detect.