... System, Guard Patrol Device, Guard Tour Reader, Patrol System, Security Patrol System, Patrol Reader, Guard Tour, Patrol Device, rfid ... ability of anti-tempering. 3. Internal closed-wide flexible glue, waterproof, cushion. 4. USB2.0 high-speed communication design, communication ... data storage recorded the largest number of 30,000. 10. Security: 30 years data retention after Power-down. Mobile Phone: ...