TSI VT-S / VHT-S Thermoanemometer Straight Probe

TSI VTH-S Thermoanemometer Straight Probe

The TSI VTH-S AirPro® Thermoanemometer Straight Probe measures air velocity, temperature and relative humidity while enabling the calculation of air flow, wet bulb and dew point temperatures*. It can attach directly to the TSI AP500 AirPro Air Velocity Meter or via stackable probes for extended measurements. Probe includes calibration certificate and protective case.


*Calculations are dependent on AirPro Product Feature Set


  • 30 to 6000 ft/min (0 to 30 m/s)
  • 14 to 150°F (-10 to 65°C)
  • 0 to 95% RH


  • ±3% of reading or ±3 ft/min
  • ±0.5°F (±0.3°C)
  • ±3% RH


  • 1 ft/min (0.01 m/s)
  • 0.1°F (0.1°C)
  • 0.1% RH

Probe Dimensions

  • Length 12 in. (30.5 cm)
  • Length can be extended to 48 inches with extensions
  • Max Diameter 0.375 in. (9.5 mm)

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