The Utica-Dunkirk 240003455 EMI Remote Display is a monitoring and control accessory designed for compatible HVAC and boiler systems. It works by providing a remote interface that displays operating status, system information, and diagnostic data, allowing users and technicians to monitor performance without accessing the main control panel. Commonly used with Utica-Dunkirk heating eq... https://www.partshnc.com/emi-remote-display