What tools are commonly used to measure air flow rates in ductwork balancing?

Several tools are commonly used to measure air flow rates in ductwork balancing, including pitot tubes, hot wire anemometers, and flow hoods. These tools enable technicians to measure air flow rates at each diffuser and adjust the damper or valve to achieve the desired proportion of air flow. Accurate measurement of air flow rates is critical to achieving balanced air flow in ductwork systems.