With ST3940B standalone GPS tracker and his (IP67 - waterproof) certification, you can cover any requirement type in the asset tracking on field service management control with extreme weather conditions without fear that your Suntech GPS tracker stop working. You can select 3 tracking modes in Suntech ST3940B tracker with hours of service control and their fuel consumption control: (using Suntech online server, from an external tracking management platform that may have European regulations of tachograph and one REST API to connect existing applications, sending commands with SMS text messages) with ST3940B you can manage some scheduled reports, you can change the tracking modes via PC or by SMS. To protect the mobile asset on where install an ST3940B GPS tracker, can setup the follow preventive "SMS alerts": (virtual geofences alert, Jamming detection alert, low battery alert), when Suntech GPS tracker detect one of these events sending the "SMS alerts" to a mobile phone. Suntech ST3940B offers up to "200 circular virtual geofences" that you can config depending of your needs, thanks to "virtual geofences for service routes or deliveries tasks" increasing your high value mobile asset protection and their control of driving habits. Suntech include the (OTA - Over the Air) function in ST3940B standalone GPS tracker, with the (OTA) function you can edit config parameters or update firmware remotely without uninstalling the GPS tracker of your mobile asset.