Critical Path Design Sciences offer an alternative to dash units and handheld RADAR guns. The RADARPC may be used in police and surveillance vehicles equipped with an existing PC by mounting the inconspicuous RADAR module on or in the vehicle. More than one illuminator may be used at a time allowing the monitoring of multiple targets at once. It may also be used while the vehicle is moving at full speed and display the speed of oncoming and departing traffic. It is very useful for movement or motion detection and recording at a distance, even movement inside buildings and allows user to characterize movement and observe the history of the movement yet there are trigger alarms in the computer when walking is recognized. Features include motion detection through most doors and walls, across-the-road angle compensation and saves to Excel-compatible file.