... largest number of 30,000 (GS-5000A) Guard Tour System with auto-reader mode design I. Product Production:1. GS-5000A Guard ... Patrol Probe, without the use of keys, auto-reader mode design.2. Equipped with sound, Led lighting, vibration triple success prompted ... reader, convenient and practical in any occasions.3. Encoded with different points of the patrol was placed in the inspection ...