Which tool is typically used to measure air flow in HVAC systems?

An anemometer is specifically designed to measure air velocity or air flow within HVAC systems. This tool provides valuable data on how much air is moving through ducts, vents, and other components of the HVAC system, allowing technicians to ascertain whether the system is operating efficiently and effectively.

In contrast, a manometer is used for measuring pressure differences in gases or liquids, making it useful for testing static pressures in ducts but not directly for air flow measurement. A thermometer, on the other hand, measures temperature and is important for assessing heat aspects of HVAC systems, while a caliper is a precision measuring tool used to measure the dimensions of objects, like the thickness of sheet metal, but has no relevance to air flow measurement. Understanding the specific functions of these tools helps technicians select the right instrument for the task at hand, ensuring accurate assessments and efficient system performance.