The Viking CTG-1A Tone Generator is designed to provide accurately timed bong alert tones or buzzer alert tone sounds over an existing paging system. It can be programmed to output single, double or triple alert tones with up to 128 events in a 24 hour period in two separate schedules on a paging system. These bong/buzzer sounds are ideal for indicating the start and end of shifts, break times, lunch periods, etc. for factories, schools or any business requiring an audible indication of specified times. Each day of the week can be programmed to either on or off, allowing you to turn off the alert tones during specific days of the week. For enhanced usage, it has three contact closure inputs for triggering an emergency siren, evacuation signal or a doorbell sound.