Network Programmable Bell Controller - Ultra 300

<!-- Injected Bullet Points --><li>A school bell controller, network programmable</li><li>Upgrade for school, factory, and warehouse bell systems</li><li>Control over LAN or the Internet, no additional software needed</li><li>Used to signal class changes, shift rotations, and breaks</li><li>Examples: schools, factories, warehouses, assembly lines</li><li>Enhances safety features with calendar-based scheduling</li></ul>">