121-440

This high-quality pressure transducer is a critical safety and diagnostic component for residential and commercial HVAC systems. Functioning as an air pressure switch or air proving sensor, it monitors the airflow and pressure differentials within your furnace or air handler to ensure the inducer motor is creating the necessary draft for safe operation. A precision-engineered transducer is essential for proper ignition and consistent heating cycles. If your system is failing to start, shutting down prematurely, or displaying pressure-related error codes, this replacement sensor can restore reliable performance and ensure your equipment operates within its designed safety parameters.
Type: Air Pressure Switch / Transducer
Size: Small
Application: Commonly used in forced-air furnaces, heat pumps, and air conditioning units to monitor draft inducer pressure and verify proper venting and airflow before and during operation.
Specifications: Precision air pressure monitoring, integrated safety shut-off compatibility, designed for high-cycle durability in HVAC environments.