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big lcd display
1. Big LCD display screen,128*64 lattice show, support Chinese, English;2. Can issue message at random time; Supervise at real time, show the staff's name, number, picture, etc when he make attendance record;3. Dog-guard circuit inside to strengthen the reliability and stability of the system;4. Read card distance >12cm, read time<0.1; Has Rs232 commutator, neednt to jump lines;5. With backup batteries, can work without power; Can set the interval of the card-reading time;6. Can register 5,000 staff, store 50,000 records.