Linortek Netbell-KB Web-Based Self-Contained Break Buzzer System for Industrial Working Areas up to 25,000 sq. ft. Up to 500 event schedules,each schedule can set different duration type for different events Self-containted all-in-one system, program and web page interface are upgradable over the Internet Flexible and accurate control of when the bells ring (HH:MM:SS, SUNDAY-SATURDAY) Built-in real time clock synchronizing with NTP server every 10 minutes (user changeable) No additional software or designated computer required, import/export schedules from existing data