Testing and Balancing Instruments

Testing and Balancing Instruments

Dwyer SMART Air Hood
The SERIES SAH SMART Air Hood™ Balancing Instrument is the most accurate andeasy to operate air flow hood on the market. By using the included hood stand andwireless communications to the handheld, a single operator can balance a branch inless time than traditional balancing teams. Besides being lighter than most traditionalcapture hoods, the ergonomic design makes the Series SAH easy to maneuver, withless physical stress. The rugged polypropylene base hood features patented QuadFlow Design Technology for controlling air flow and minimizing back pressure, whichyields superior measurement accuracy. The Wi-Fi direct communication gives reliablecommunication with a distance of up to 200 yards (183 m) between the hood and thehandheld test instrument. The SMART Air Hood™ Balancing Instrument includes thePredictAir™ Application Software which reduces the number of steps in the air flowbalancing process using Predictive Balancing’s Express Balance mode. Predictive Balancing is a method of predicting the optimal flow set point for each register and the order in which they should be adjusted.

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  • Patent pending Quad Flow Design Technology directs the circulating air patterns toprovide a more even air flow that minimizes backpressure enabling accuratereadings
  • Predictive Balancing is a process that guides the balancing technician on setting theoptimal flow set point for each sequential terminal. With the PredictAir™ ApplicationSoftware, the balancing process takes much less time than traditional air balancingmethods
  • The ergonomic design is much lighter and easier to work with than the existing bulkyair hoods, providing greater maneuverability and less physical strain. One techniciancan complete the air balancing
  • Wi-Fi direct wireless communication provides a range up to 200 yards (183 m) lineof sight


  • Commissioning, testing, adjusting and balancing volumetric air flow from diffusers,grilles, and registers in HVAC systems