Netbell-Ultra 300 TCP/IP Network Programmable Bell Timer Controller Web-Based Software up to 10 Sets of Bell Schedules for School and Factory Bell Systems

I installed this at work to replace an ancient break bell system that had to be reprogrammed every time the power blinked. Setup was very easy. We are a retail warehouse operation that has expanded hours certain times of the year and I LOVE that I can pre-set a schedule for the expanded hours and change from one schedule to the other very easily. It has worked very well with our older tone generator so no issues there.If you want to program more than one schedule, you can download an existing schedule, edit it in Notepad or other text editing software, then upload it to the new schedule.I was able to get a static IP address from our IT department and can access it from my laptop anywhere. That is another GREAT feature of this device.Another note - I didn't see it anywhere in the description but it does come with an AC adapter so you don't have to buy one if you aren't connecting it to a network that has PoE.