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Retrotec 550 Commercial Ductester

Retrotec 550 Commercial DucTester

Precision Control and Higher Flows


Retrotec’s Model 500 Commercial DucTester is the most robust duct tester Retrotec has ever designed. Nothing else on the market comes close to its extreme performance in such a compact, lightweight handheld system.


A completely new motor design allows for precise fan speed control, while maximum flow has increased to reach up to 18 – 952 m3 /h at 2000 Pa. The Model 500 is ideal for those needing to reach high flows and advanced control.


System Specs


Maximum Test Pressure 5000 Pa

Flow Range 1 – 952 m3 /h

Input Power 1860 W or 2040 W

Flow Unit Weight 11.8 Kg

Accuracy, % of reading +/- 5%



The max flow of the fan will vary depending on the following factors:

  • Barometric Pressure
  • Back Pressure
  • Blade pitch
  • Air Temperature
  • Bearing tightness
  • Inlet air turbulence
  • Length of flex duct


Read more about Duct Leakage Testing and Standards


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