Advanced Micro-CPU:Built-in Microprocessor, Twin-CPU design, Integrative Design, Controller or Communication Socket not required. Save cost for our USERs Auto-Navigation: Display of Patrol Man and Patrol / Tour Route, ensuring ruly tour and patrol. Auto-Hint to avoid forgetting the check points, Status can be shown by blue LED light, Beep, and TFT Screen Message Calendar Time:Display of Calendar and Time, help the Patrol Man to arrive at the check site on time Real-time Record: Supporting inputting the status of check site real time, 30 user-defined types of status available. Terse Keyboard:Terse Keyboard Design, three key can operate all the function Record Search: Supporting searching recording on the machine Security Design: Metal Shell, Waterproof, Quakeproof, able to bear High Temperature and Low Temperature, Data can be kept for 30 years after electricity off Low Power Consumption: Advanced Built-in Power Management System, Rechargeable and Exchangeable. Patrol /Tour Report: Auto Patrol /Tour Work Inspection Report, Patrol/ tour Analysis Report