Utica-Dunkirk 240009339 Sensor 320720-756 eliminating the calibration drift often

eliminating the calibration drift often seen with generic aftermarket controls

How do I handle the unused primary wire leads

Its 11-10 design ensures precise airflow management

and G61 series

Reliable Performance: Features heavy-duty ball bearings and thermal protection to handle the high static pressure of modern ductwork

Utica-Dunkirk 240009339 Sensor 320720-756 eliminating the calibration drift oftenThe Utica Dunkirk 240009339 Sensor is a critical OEM component for hydronic heating systems requiring high precision temperature monitoring. This 24 inch hot water sensor is a direct replacement part engineered specifically for L7221 and L7248 Aquastat controls. As a veteran grade boiler temperature sensor, it provides the low voltage resistance feedback necessary for the control board to manage ignition cycles and high limit safety protocols