PLUG and PLAY - NO WIRING REQUIRED, EASY TO INSTALL: Low voltage extra loud automatic bell system for factory or warehouse break time alarm, setup in minutes, no need to hire professional installer EASY TO USE: Network enabled with built-in web server, program your break bell from a web browser with the IP address from any computer on the network, no extra software to install COST-EFFECTIVE BREAK BELL SYSTEM: One web-based bell timer controller with the built-in extra loud bell (102 dBa @1m), hardware and software for installation and operation are included. FLEXIBLE BELL SCHEDULER: Up to 500 programmable bell scheduling software, weekday/calendar based - easily switch to different schedules with the Download/Upload feature or the free BellScheduler desktop app FREE SOFTWARE, NO MONTHLY FEES: The Netbell software is pre-installed on the controller. No need to install any additional software on your PC. You can access the software from any PC in the network, with admin changeable login/password, up to 3 users DESIGNED, DEVELOPED AND MADE IN THE USA, TECH SUPPORT IS PROVIDED BY MANUFACTURER`S TECHNICIANS: Please feel free to reach out to us (Linortek) when you need tech assistance or have questions The Netbell-KL has a compact, self-contained design that was created with ease-of-use in mind. The system is built on TCP/IP platform with a built-in web server and special software designed for scheduling a bell system, all software and mounting hardware required for installation and operation are included. With the built-in web interface, you can access, control and schedule bell over a network or the Internet, no additional software or designated computer required. With the specially designed BellScheduler desk app, manage & schedule multiple Netbell devices in a few clicks, from one simple interface. It’s an ideal solution for schools, factories, warehouses to build a fully automated web-based timed alert system for signaling class changes, shift rotations, breaks and any other timed signal applications in areas of high ambient noise levels. This bell system is loud enough to be heard over equipment and won’t have the same sound as some industrial equipment or a fire alarm. The Netbell-KL features a high quality 6 in high volume bell (102dBa@1m/92dBa @10') that can cover up to 20,000sqf areas and a completely wired web controller installed within a NEMA-rated box. There is an additional relay output (1-Form-A relays 110/220@10A) with a CP connector that provides quick connect/disconnect a second bell (not included, purchase separate) if you have a larger area needs to be covered. The external bell(sold separately) can be connected at 250ft away with 18AWG cable (500 ft/16AWG cable) to the Netbell-KL server, with a suitable power source. With the push switch (sold separately) connected to the digital input, you can ring bells manually for emergency.