Overview
The Netbell-4K-C is a network bell controller and digital clock system for schools, factories, and warehouses that need to drive several bells or buzzers from one controller. It has four relay outputs, so you can run up to four bells, buzzers, or other timed signal devices, and the included 4-inch digital clock plugs right in and syncs its time automatically from the controller. Everything sits in a NEMA (IP66) rated box that stands up to dust and non-direct water, making it a good fit for shop floors and warehouses. As a web-based bell controller on a TCP/IP platform, you program up to 500 events from any browser with no additional software and no monthly fees, and you can wire a push switch for manual emergency ringing. A cost-effective upgrade from an old bell timer.
How It Works
- Wire your external bell to the power supply and connect it to the Netbell-4K-C controller.
- Power the unit and connect it to your network — it can go anywhere on your network, no direct PC connection needed.
- Plug in the 4-inch digital clock — it syncs its time from the controller automatically, no setup.
- Add bell schedules from a standard web browser (or the free BellScheduler desktop app) — up to 500 events.
What’s in the Box
- One Netbell-4K SERVER
- One digital clock
- One 3-meter power cable
- One 3-meter RJ45 network cable
- Four 3-meter bell cables (CP Connector)
- One 12VAC power supply
- Wall mounting brackets and hardware









