... System, Guard Patrol Device, Guard Tour Reader, Patrol System, Security Patrol System, Patrol Reader, Guard Tour, Patrol Device, rfid ... data read 20,000 in 1 minute. No button, automatic card reader, convenient and practical. 5. Sound, LED lighting, vibration ... more than 500,000times. 8.Card reader technology: Switzerland EM sensor reader technology. 9. 4M Flash memory: data storage recorded the ...