Suntech ST300B GPS tracker has the following interface to connect diferents externals devices: 2 digital inputs (1 ignition input), 2 digital outputs, 1 input for audio control (speaker and mic), 1 REST API to connect existing applications. With ST300B GPS tracker can reduce vehicle maintenance costs, by allowing update and configuration via OTA (Over The Air). Using your ST300B from our GPS platform that has European regulations of tachograph, you can control their vehicle event management and manage their field service management without requirement limit or you can control their vehicle preventative maintenance that help you to reduce company cost, in addition you can use without extra cost our automatic data sending service to external servers and manage their vehicle fuel consumption control without any requirement limit or control their service routes and deliveries tasks depending of your need, also you can manage their vehicle hours of service control (HoS) that help you to reduce cost and control their manual task registration without any requirement limit or manage their vehicle eco driving depending of your need. In our tracking platform you can also manage some type of scheduled reports depending of your need and control their vehicle efficient driving or you can manage the care driving of their drivers without requirement limit, in addition you can locate their ST300B from a mobile phone using our mobile applications for vehicle tracking and control their automatic vehicle dispatch depending of your need or manage their drivers control of driving habits that help you to reduce cost, also you can control their event management without any requirement limit and manage their drivers driving control depending of your need.