As the direct OEM replacement for B1809904

Durable Construction: Heavy-gauge copper tubing provides superior corrosion resistance and pressure containment

allowing for rapid field installation or replacement without breaking pipe connections

As a critical replacement component for Johnson Controls SCN series interfaces

and SP745 ignition control units

Honeywell C7400A2001 Enthalpy Sensor 320720-756 As the direct OEM replacementThe Honeywell C7400A2001 is a professional grade solid state enthalpy sensor designed for integration with economizer logic modules to optimize outdoor air intake based on total heat content. This analog enthalpy sensor provides a precise 4 20mA output signal that increases as enthalpy levels decrease, allowing for seamless communication with W7212A, W7459, and W7215 controllers. Engineered with a durable, corrosion resistant glass fiber reinforced