Through SMS messages or from Suntech configuration software, you can setup some "Virtual geofences - circular/polygonal" in the Suntech ST640 GPS tracker to protect the safety of your mobile asset or vehicle. With ST640 GPS model you can manage the "driving behaviour" with the follow reports: (harsh braking, harsh cornering, harsh acceleration, overspeed), improving the driving performance of your mobile asset or vehicle. The tracking of Suntech ST640 GPS tracker can make it in the online server that Suntech offer or change IP/port in the configuration and use ST640 from an external Tracking Management Platform. Through the (1-Wire) interface of ST640 GPS tracker, you can connect an "temperature sensor" to controlling the temperature of mobile asset or vehicle in real-time, the temperature information generate by ST640 you can see in the Tracking Management Platform or Suntech server. In the different digital inputs of Suntech ST640 can connect for example: (panic button for SOS emergency messages or doors sensors), also can contact with Suntech to kwon that type of peripherical are compatibles.