The Netbell-C4 is a plug & play network-enabled PoE-IP digital clock. You only need to connect the clock to a PoE switch on your network, and it will automatically update its time from any NTP server of your choice, with automatic adjustment for daylight saving time, providing completely maintenance-free operation. It is designed on a standard TCP/IP platform, with a built-in web server; hardware and software for installation and operation are included, no additional software required. To set up the clock, you will only need to log in to the device to change the time zone from any browser, no additional programming required. It's a simple, easy-to-deploy time clock solution for your facility. With the large, bright 4-inch tall digits, the clocks are easily visible up to 250 feet. It's a reliable time clock solution for factories, schools, and other commercial and industrial facilities.