Decatur Electronics, a D&K Engineering brand of speed enforcement tools for Law Enforcement, has been developing the most reliable police radar and traffic calming speed trailers for over 65 years. We ...

New Modular Design - The OnSite™ 300M Speed Trailer is an unmanned speed deterrent that monitors traffic speeds. When used with the EZ Stat™ Data Logger the OnSite™ 300M can record traffic data for ...