Netbell-2-1Bel kit is a one-stop solution for small schools or shops to build an automatic network break bell system for signaling class changes, shift rotations, lunch breaks and any other timed signal applications. The kit includes one Netbell-2 networked Bell Controller with bell scheduling firmware(accessible for NO additional charge from any computer in your network), one signal bell (6 inch, 86dB - is able to cover 6000 to 8000 sqf office/school area), attached to weatherproof back box for wall mounting and a12VDC power supply to power the bell and 10-foot power cable. The bell needs to be wired to the Netbell-2 controller with two conductor wire - we supply 10 ft of 18 gauge wire with the kit, but you may choose to use longer wire sourced locally. The bell can be wired at up to 250 feet away with 18AWG cable (or up to 500 feet with 16AWG cable) from the Netbell-2 controller. You will have everything needed for installation and operation.The Netbell-2 web-based bell controller is built on a TCP/IP platform with a built-in web server and special software designed for scheduling your bell system. With the intuitive and easy to use web interface you can access, control and schedule bells over the network or via Internet, no additional software or designated computer are required. With our free BellScheduler desk app you can manage & schedule multiple Netbell devices in a few clicks, making operation of your bell system incredibly easy. With the digital inputs you can wire a push switch(optional) to ring bells manually in case of emergency