We Specialize in School Bell & Factory Bell systems.  Belltimers.com can design from new or integrate into any existing bell system. We have simple stand alone timers to network controlled timers.  If you have a existing system with tone over paging then we can upgrade that any one of our custom made timers can be outfitted with a tone out to broadcast over an existing paging system.
We specialize in custom designed systems, please tell us what your specific application is and we will come up with a suitable solution that fits your budget. Some our designs include

• Factory Buzzer Systems                               
  
• School Bell Systems