Concox AT4U Standalone GPS tracker offer three GPS tracking modes for hours of service control: (mobile phone app, SMS message, Tracking Management Platform via Web on where manage some scheduled reports and their fuel consumption control). If use AT4U in our GPS tracking platform that has European regulations of tachograph, you can control their vehicle event management and manage their mobile asset efficient driving or also use our REST API to connect existing applications. From our GPS tracking platform, you can also manage the care driving of their drivers without any requirement limit and you can manage their vehicle preventative maintenance that help you to reduce company cost or you can also control their field service management depending of your need, in addition you can use our mobile applications for control their AT4U tracker from a mobile phone and you can use without extra cost our automatic data sending service to external servers or you can manage their drivers control of driving habits depending of your need. You can receive SMS alerts from AT4U of Concox o your mobile phone, when tamper or sabotage in your device. GPS Tracker with Microphone / Speaker Concox AT4U allow to make voice monitoring surrounding by sending a text message, this function is ideal for your field service management control. The AT4U GPS device of Concox it is used in Fleet Management applications, vehicle control of driving habits or GPS Asset Tracking.