This Weil-McLain device is a supply temperature sensor designed to monitor and regulate the temperature of a heating supply. The sensor operates by detecting changes in the thermal conditions of the supply, then transmitting this data to the system's control module. This process allows for precise adjustments to be made in real time, ensuring optimal performance and efficiency. The device is compatible with a range of Weil-McLain heating systems, offering versatility and convenience for users. It is constructed from durable materials that can withstand high temperatures and harsh operating conditions, ensuring longevity and reliable operation.