EMX DAK-USVD Ultrasonic Drive Thru Alert Kit

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EMX’s DAK-USVD from Action Industries is an ultrasonic drive-thru alert kit for a wide variety of applications including parking, access control, car washes, fast food, and more. Unlike most other vehicle detection and drive alert systems, the DAK-USVD does not require the installation of an induction loop, additional set up, or functional adjustments are required. The motion sensor is simply mounted on a post and aimed at the desired location of detection.

The ultrasonic alert kit comes in two components: the CHIME-100 driveway signal bell sound module, which creates an audible chime when a vehicle pulls in front of the vehicle detector, and the USVD-4X ultrasonic motion detector, which detects the presence of a vehicle. The USVD-4X vehicle sensor can increase facility or home security without requiring the installation of a security camera. does not require the installation of an induction loop to detect vehicles; it simply mounts to a post and is aimed at the desired location of detection.


  • Two Components: CHIME-100 sound module and USVD-4X ultrasonic vehicle detector

  • Driveway sensor for drive thru applications, entry alert, driveway alert, security systems, and more

  • Adjustable volume control

  • Easy, DIY set-up for streamlined operation

  • Designed for loud work environments, easy to hear in loud areas

  • Auxiliary relay settings - Pulse on Entry, Pulse on Exit, or both

  • Can reach volumes of 100 dBA at 5 ft. Away

  • 6 audible melodies to choose from

CHIME-100 Specs:

  • Supply Voltage - 9 VDC

  • Dimensions - 4.5" x 3.25" x 1.58"

  • Weight - 0.35 lbs

  • Housing - Polycarbonate

  • Maximum Volume - 100 dBA @ 5 ft.

  • Melody Options - 6

  • Included Cable - 25 ft. - 5 conductors (0.25" outer diameter)

USVD-4X Specs:

  • Sensing Elements - 4 ultrasonic transducers

  • Operating Range - 1-5 ft.

  • Response Time - 2.0 seconds

  • Relay Output Configuration - 2 SPDT (Form C)

  • Relay Contact Rating - 1 A @ 24 VDC

  • Power Indicator/No Vehicle - Green LED

  • Object In Range - Flashing green LED on each input, continuous LED on detect

  • Operating Current - 60 mA

  • Operating Temperature - -40°F to 182°F

  • Dimensions - 5.7" x 3.6" x 2.3"

  • Weight - 0.6 lbs

  • Housing - ABS NEMA 4X

  • Connection - 10 position terminal block

Product Manual

Product Manual