Mainline USDOT
Number Reader
High-speed mainline
Virtual Weigh Stations

Data quality delivered at mainline speed

When drivers are on the move, real-time, automated intelligence is required to accelerate throughput, support informed decision making, enforce compliance, and ensure safety is maximized. 

The Perceptics Mainline USDOT is a high resolution OCR imager designed to capture USDOT numbers, KYU, Motor Carrier and VIN numbers with high accuracy. When you integrate the Perceptics Mainline USDOT with our Mainline LPR, you can check against multiple databases and screen larger populations of commercial vehicles on the mainline.  With high speed, high performance functionality comes efficiency so that your officers can focus on inspecting only vehicles flagged with potential violations, allowing vehicles in compliance to continue moving.

Our systems are proven to help commercial vehicle enforcement operations to:

  • Identify who is bypassing your weigh station
  • Access real-time, accurate data to ensure roadway safety for all travelers
  • Reduce weigh station congestion: only carriers with potential violations are flagged to exit to the weigh station 
  • Integrates with weigh-in-motion (WIM) technology
  • Reduce demand on weigh station facilities
  • Act as a force multiplier for your staff

The Perceptics Mainline USDOT captures USDOT, VIN, KYU, and Motor Carrier numbers at speeds of up to 75 mph. 

Ultra high resolution imaging of USDOT numbers 

Integrated optical character recognition engine

Guaranteed Accuracy*

*Certain Terms and Conditions Apply

Benefits + Features

Reads USDOT numbers in numerous fonts, sizes, and locations

Fast image processing to ensure minimal latency from time of image capture to when data is reported

Doesn't miss reads due to speed – reads USDOT number types and fonts on vehicles traveling up to and exceeding 75 mph 

Convenient Web interface for remote status and configuration

Scalable architecture and proven integration with WIM and other systems


System Components

LPR Integrated system includes:

  • High Resolution Camera (5 MP)
  • Advanced Video Processor (AVP)
  • Baffled Stroboscopic Illuminator
  • Post, cables, junction box, and external power NOT included
  • Optional external sensors NOT included


Imager: 85-230VAC, 50/60Hz, 25W

Illuminator: 120VAC, 125W (continuous)

Physical Characteristics


  • Dimensions: 8.4"W x 7"H x 12"D (213.4mm x 177.8mm x 304.8mm)
  • Weight: 11.5 lbs (5.2 kg)
  • Material: Powder-coated Aluminum


  • Dimensions: 10.3"W x 9.1"H x 25.1"D (261.6mm x 231.1mm x 637.5mm)
  • Weight: 30.05 lbs (13.6 kg)
  • Material: Powder-coated Aluminum


Operating Temp: -40°F to 158°F (-40°C to 70°C)

Humidity: 10%~90% (non-condensing)

Protection Rating: IP54


  • Operating Range: 12' minimum, 60' maximum (depending on lens option)
  • Triggered by external sensors; Lane-side, post-mounted configuration
  • Sensor Options (NOT INCLUDED): in-road loops, through-beams, or laser sensors available

Options + Enhancements