TSI VelociCalc® Air Velocity Meters
TSI's VelociCalc® air velocity meters are easy to use from the first time you pick them up. VelociCalcs measure velocity and temperature, calculate volumetric flow rate, perform multi-value averaging, and determine minimum and maximum readings.
  • Extended velocity range of 0 to 9,999 ft/min
  • Temperature range of 0 to 140°F or more
  • Easy to read digital display
  • Variable time constant modes available for a steady display when measuring fluctuating flows
  • Telescoping probes with etched length marks to make duct traverse measurements easier
  • Sampling function allows for easy recording of multiple measuring points
  • Direct calculation of dew point and wet bulb temperature, no psychrometric chart needed (call for models)
  • Flow rate feature allows for simple and quick calculations of volumetric flow rate when the user inputs the duct shape and size
  • Optional portable printer provides a hard copy documentation of your readings

TSI VelociCalc Models
9515 & 9525
9535 & 9545
9555

velocicalc