TSI VelociCalc 8386 Multi-Parameter Ventilation Meter
TSI Instruments

TSI VelociCalc 8386 Multi-Parameter Ventilation Meter

Pine Item #51192

Talk about feature packed -- this little instrument is jammed. The VelociCalc Plus simultaneously measures and logs velocity, temperature, static pressure, Pitot tube readings and humidity, and calculates volumetric flow rate, dew point, wet bulb temperature and heat flow. Multiple sensors but one easy-to-use forty-inch telescoping probe. The rental unit comes with custom software.


Wide velocity range of 0 to 10000 ft/min

Flowrate feature makes simple calculations of volumetric flowrate when the user inputs the duct shape and size K factor or horn size

Velocity measurements are made from the thermal sensor or a Pitot tube

Automatic conversion between actual and standard velocity readings

Direct calculation of dew point and wet bulb temperature - no psychrometric chart needed (Model 8386 only)

Heat flow function calculates heat transferred after a heating or cooling element (Model 8386 only)

Stable digital display when measuring fluctuating flows

Back-lit display is easy to read in poor lighting conditions

40 inch telescoping probe with etched length marks to make duct traverse measurements easier

Optional articulating probe available

Optional portable printer provides hard copy documentation of your measurements


HVAC Testing

Clean Room Testing

Biological Safety Cabinet

Lab Fume Hood Testing

HVAC Commissioning

IAQ Investigations

Thermal Comfort

Ventilation Evaluations

Quantity must be 1 or more
Equipment available for both rental and purchase
Request a Quote


Technical Specifications

Velocity from Thermal SensorRANGE: 0 to 9999 ft/min
Velocity from Pitot TubeRANGE: 250 to 15500 ft/min
TemperatureRANGE: 14 to 140F
Relative HumidityRANGE: 0 to 95%
Wet Bulb TemperatureRANGE: 40 to 140F
Dew PointRANGE: 5 to 120F
Static/Differential PressureRANGE: -5 to +15\ wc
DataloggingUp to 1394 samples and 275 test IDs
PowerFour AA alkaline batteries
DimensionsUS: 7.2 x 4.2 x 1.5 in. Metric: 18.3 x 10.7 x 3.8cm
WeightUS: 1.2 lb. Metric: 0.544 kg
Manuals & Data Sheets