EMX USVD-4X Ultrasonic Vehicle Detector

Ultrasonic Vehicle Sensor for Access Control, Parking & Drive-Thrus

The EMX USVD-4X is a surface-mounted ultrasonic vehicle detector designed for reliable presence detection in a range of environments, including access control, parking management, and drive-thru lanes. Unlike traditional loop detectors that require cutting into pavement, the USVD-4X uses Triangular Planar Array (TPA) technology to detect vehicles from above ground, simplifying installation and reducing costs. Ideal for both new and retrofit applications, the sensor integrates easily with security gates, barrier arms, and automated entry systems.

Built with a NEMA 4X-rated weatherproof housing, the USVD-4X is well-suited for outdoor use in commercial and security-sensitive sites where trenching is not feasible.

Key Features

• Surface-mount detection - no need to cut pavement
• TPA technology delivers fast, accurate vehicle presence sensing
• Detects vehicles at 1 to 5 feet with 2-second response
• Dual SPDT relays with programmable logic for entry, exit, or both
• Relay delay options: 0, 1, 2, or 4 seconds
• LED indicators show power and detection status for diagnostics
• Operates from 12–24V AC or DC power
• Wide temperature tolerance from -40°F to 182°F
• Ideal for access control, gated entries, drive-thrus, and parking facilities
• Weather-sealed ABS enclosure, rated NEMA 4X

Technical Specifications

• Model: USVD-4X
• SKU: EMX-2700-1
• Detection Range: 1 to 5 feet
• Response Time: 2.0 seconds
• Relay Outputs: 2 SPDT (Form C)
• Relay Rating: 1A @ 24VDC or 120VAC
• Power Supply: 12–24V AC/DC
• Current Draw: 60 mA
• Operating Temperature: -40°F to 182°F (-40°C to 85°C)
• Enclosure: ABS plastic, NEMA 4X rated
• Dimensions: 5.7” x 3.6” x 2.3”
• Weight: 0.6 lbs (275 g)
• Recommended Mount Height: 22–24" above vehicle path
• Cabling: Wires/cables not included

Conclusion

The EMX USVD-4X offers a durable, trenchless solution for vehicle detection in environments where underground installation is impractical. Commonly used in drive-thru lanes, this versatile sensor also excels in access control, parking, and security gate systems, providing dependable performance and fast installation across a wide range of applications.