Which instrument is used to measure duct static pressure?

The instrument that is most appropriate for measuring duct static pressure is the differential pressure gauge. This tool is specifically designed to measure the difference in pressure between two points within a duct system, which is crucial for assessing the performance and efficiency of HVAC systems. By measuring static pressure, technicians can determine if the airflow in the ducts is within acceptable ranges, diagnose potential obstruction issues, and ensure that the system is operating as intended.

A differential pressure gauge features ports that can be connected to the ductwork, allowing it to capture the static pressure exerted by the air on the walls of the duct. This is essential for maintaining comfort levels, energy efficiency, and proper air distribution in a building. Understanding duct static pressure is critical for HVAC professionals to optimize system operation and performance.