monochrome hazmat
placard reader

Quickly and accurately report the presence of hazardous materials with Perceptics' trusted OCR technology.

The Perceptics Monochrome Hazmat Placard Reader reads up to six hazardous materials placards on commercial vehicles or containers with the same industry-leading accuracy that has come to define Perceptics systems. Utilizing the USDOT Number Reader hardware, the processing of hazmat placards occurs in a seperate processor that can be housed in a junction box on the post or in a back office. A current Perceptics USDOT Number Reader can be easily upgraded to incorporate hazmat placard reading capabilities.

When paired with the Perceptics License Plate Reader or Overview Camera, officials have multiple vehicle datapoints with which to make quick and informed decisions.

Product Hightlights

  • Can be a software add-on to the Perceptics USDOT Number Reader so minimal additional hardware is needed
  • Standard and wide angle options maximize image capture based on site geometry and vehicle speed
  • Provides an image of the placard and reports hazard class, division and UN number
Benefits + Features

Scalable architecture and proven integration with WIM and other systems

Reads hazard class, division and UN number

Convenient Web interface for remote status and configuration


5MP camera with pre-selected and pre-set lens

Infrared stroboscopic illuminator with front panel filter kit

Post mounting kit

Junction box with embedded PC including hazmat placard OCR and pattern recognition software

Optional trigger sensors, posts, cables, and junction boxes are available

Power & I/O

Imager: 120VAC, 50/60HZ, 55W

Illuminator: 120VAC, 200W (static), 1250W (peak)

10/100 Mbps Ethernet port

Operating Conditions

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

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

Protection Rating: IP67

Physical Characteristics


  • Dimensions: 6.6"W x 6.4"H x 12"D (168mm x 163mm x 305mm)
  • Weight: 9.8 lbs (4 kg)


  • Dimensions: 7.7"W x 7.4"H x 22.7"D (196mm x 188mm x 577mm)
  • Weight: 23 lbs (10.5 kg)

Material: Anodized aluminum sun shield, extruded anodized aluminum body

Connectors: 3-pin power, 4-pin signal, 6-pin trigger, Ethernet

Ultra-High Resolution Imaging & Illumination

Externally triggered

5MP resolution

Field of View (depends on lane geometry): 11' - 20'

Operating Range (depends on lane geometry):

  • Wide Angle: 11.5' - 22'
  • Standard Angle: 16.5' - 45'

Lens Options:

  • Wide Angle: 12.5mm - 25mm
  • Standard Angle: 16mm - 50mm

Vehicle Speed:

  • Wide Angle: up to 45mph 
  • Standard Angle: up to 75mph

Full images (compressed or uncompressed); patch images also available

Light Source: Xenon gas discharge lamp

Illuminator Output: 12 joules

Recharge Time: 200 ms

Lamp Life: 40,000,000 flashes

Image Sensor

Sensor Size: 2576 x 2048 active pixels

Sensor Type: Quad Super eXtended; Graphics array (QSXGA) CMOS

Sensor Readout: Random programmable region of interest (ROI), global shutter

Optical Size: One inch

Pixel Size: 4.8μm x 4.8μm

Pixel Bit Depth: 10-bits

High Dynamic Range (HDR)

On-chip Fixed Pattern Noise (FPN) Correction

Automatic Exposure Control (AEC)

Serial Peripheral Interface (SPI)