# Rawson Introduces GPS-based Speed Sensor Author: Jim.Robinson Published: 2007-11-20 Canonical URL: https://www.cottongrower.com/cotton-news/rawson-introduces-gps-based-speed-sensor/ --- Traditional radar guns can be affected by ground surface variations, potentially compromising the output of the unit. The ACCU-SPEED system receives signals from global positioning satellites resulting in more accurate, more reliable ground speed detection. When put into action, the ACCU-SPEED warm start takes only 15 seconds, while GPS acquisition requires less than two seconds. Sky search requires merely five minutes. The ACCU-SPEED features a magnetic base, can be installed quickly, and can be easily transferred from one vehicle to another. User-friendly features include a standard NMEA port for RS232 GPS/GIS; an indicator light that lets you know when you have acquired satellites ; and three 57.5 Hz outputs for speed that eliminate y-cables for your monitor. If the GPS signal is lost, the ACCU-SPEED will maintain the last speed until it receives a GPS signal. The ACCU-SPEED system is waterproof and designed to withstand rugged operating conditions. This unit’s operating temperature ranges from 30 to 80 degrees; the storage temperature ranges from 30 to 90 degrees. For more information visit [www.rawsoncontrol.com](http://www.rawsoncontrol.com).