Instant Ring Button for your work shift timer
Press the button, hold it for as long as you want it to sound. Release, it stops.
Applications:  Delivery truck alert. Variable - unscheduled breaks.
                      Emergency alert.   Sandwich truck alert.  
Network/Internet timers: 
This is installed directly in to the case before shipping. It cannot be activated remotely.
You can run either your existing bells or our 110v bells/buzzers or 24VAC buzzers
Amano: The button is installed on  the external power supply box.