Adopted most advanced RFID card technique Large storage capacity: 38,100 (ST-6655S) or 20,000 (ST-6655T) records Interface: RS232, RS485, LAN and modem (decided by style) Fast communication speed: 57,600 baud rate Reading range: 8 to 20cm (decided by card) Card number convertible into serial number, easy to memorize Supports multiple network Delivering the punch records simultaneously Displaying personal details when punched (decided by style) Outing management on working hour Bell schedule Built-in rechargeable battery for emergency Communication way: RS232/485, LAN and USB
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