Along with near real-time location data , GPS systems can also produce more information for officer interpretation and response. Officer need the flexibility to customize when and how they receive offender data while incorporating the newest technology available to ensure the data and alerts they receive are accurate-all in one piece of equipment for easy installation and inventory management . IP68 4G One Piece Gps Offender Tracking Device For Prisoner SUNGUARD YH717 electronic monitoring is a light, compact,one piece,wrist-mounted electronic tracker for offender tracking and community movement in near-real time . In standard operation,it searches for a location fix multiple times per 15 minutes (Customizable) , and records the best point every minute. The GPS locations ,along with the ability to utilize WIFI / LBS signals.