You can use three modes to locate and hours of service control in real-time the Concox GT03C Standalone GPS tracker: through SMS messages, through smartphone app, through a Tracking Management Platform always online. To protect your mobile asset, you can configure the following SMS alerts in GT03C Standalone GPS device of Concox: (Anti-theft, asset movement, asset vibration, geofences, S.O.S emergency alarm), GT03C GPS device send a SMS message when an alert is active. Concox GT03C it is also "GPS Tracker with Microphone / Speaker" that allows you to hear the sound around the device, to active this function ideal for improve your field service management control you need send a text message. In addition, Concox GT03C Standalone GPS tracker has a "Panic button" ideal for S.O.S emergency SMS messages or emergency calls.