https://www.canadiantrafficsupply.ca/product-page/radar-speed-display-rad60l
Radar Speed Display RAD60L | CTS TRAFFIC SUPPLY
The radar speed displays RAD60L encourages drivers to reduce their speed with their three colour display. Educational messages are displayed in full matrix...
radar speed displayctstrafficsupply
https://www.msvelectronics.com/kn/radar-speed-display-dign
Radar Speed Display Sign | MSV Electronics
radar speed displaysignmsvelectronics