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Attendance Machine This attendance machine adopted the most advanced IC card technology, can be used to record the staff attendance status and statistics automatically with the attendance software systems. Its simple operation could let you manage the staff attendance easily and efficiently. Specifications · Supply voltage: AC180V 260V · Frequency: 49.5Hz 60.5Hz · Power consumption: ≤ 5W · Means of communication: RS232, RS485, TCP / IP (internal) · Ambient temperature: Working Status: -20 °C +70 °C Storage Status: -40 °C +70 °C · Humidity: Working Status: 10% 90% Storage Status: 5% 95% Features · Maximum recording capacity: up to 38500 · Records Automatic Updates, IC card number range 1 65535 · Power Down Time Data Protection: ≥3000hours · Frequency settings: no restrictions · Alarm time settings:up to 8 · Large-screen LCD display in Chinese · Maximum transmission distance: 1,200 meters, RS485 mode (with converter) · GPRS Module can be added