1. Integrate GPS printer,SD card, IC card reader; 2. Real time tracking; 3. SD card store data; 4. Camera ... screen to release Ads. Strong expansibility with module design. Product functions:1. Signal detecting and control: 13 routes signal sensor, ... 3 modes of alarm. 3. Monitoring: vehicle automatic tracking/monitoring, region setting, geo-fence, GPS mileage statistics, vehicle mileage statistics, ...