We have a computer-based master clock control for your digital display clocks and bell ringer. You no longer need to use an outdated timeclock to sound your break buzzers. Our pc-based solution allows for total synchronization of your horns, digital clocks or analog wall clocks to your computer network. Imagine having all of your employees working on the same synchronized network, all of your bells ringing at the same time your analog wall clocks strike 5:00 PM! This is now an affordable reality and it is all available with a simple connection to your PC's serial port!