You can install an external "panic button" in ATrack AL11 GPS asset tracker, through the digital input, with the panic button protect your mobile asset driver and the driver can generate "SOS emergency messages" every time that detect a danger. Through the "1-Wire" interface of AL11 tracker, is possible manage the hours of service and connect: (driver identification with iButton, trailer ID, connect up to 2 temperature sensors). ATrack AL11 offer 3 real-time tracking modes with field service management control: (from ATrack online server, using an external tracking management platform, sending text messages with mobile phone via SMS), you try that mode is better for your need. ATrack has designed AL11 NB / IoT GPS tracker with a 3-axis accelerometer that detect any movement type and detect impacts, thanks to these function you can increase the "driving control" in your daily GPS asset tracking. The config of ATrack AL11 waterproof GPS tracker can make it through SMS text messages and via USB cable or also use an REST API to connect existing applications, to firmware upgrade dispose of the (OTA - Over the Air) function, that allow upgrade AL11 remotely without uninstall NB / IoT GPS tracker of your mobile asset, this function reduce their asset or vehicle maintenance.