Q-Free Parking
Q-Free Parking

USDS Parking Sensor

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  • USDS Parking Sensor

Ultrasonic directional sensors provide high-accuracy vehicle counts to better manage parking availability by facility or level.

  • Track vehicles in multiple directions traveling up to 19 mph (30 km/h)
  • Retrofit existing structures with ease and without the need for costly saw-cutting
  • Save energy with 24 VDC low-voltage device


Our overhead ultrasonic directional sensor (USDS) is a cost-effective alternative to individual space sensors and less reliable camera-based systems.

USDS are less intrusive than conventional in-ground loops with no compromise to membrane, rebar, or post-tension cabling.

Units can be deployed individually or as part of a three-unit cluster design to determine vehicle direction. The three-unit configuration covers up to 24 feet (7.3 meters), reducing the need for delineation to separate entrance and exit lane counts.

Installation is easy, and, best of all, the units can be relocated should traffic patterns change.

Product sheet

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Product specifications may change at any time without notice and may not be available in all markets. Contact us for up-to-date information and availability.

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