TSI 9555 VELOCICALC Multi-function Ventilation Meter
TSI Instruments

TSI 9555 VELOCICALC Multi-function Ventilation Meter

Pine Item #61291

The Series 9555 are portable, hand held, Multi-Function Ventilation Test Instruments. These instruments are available with or without a differential pressure sensor and are designed to work with wide range of plug-in probes. The probes allow users to make various measurements by simply plugging in a different probe that has the features and functions best suited for a particular application. They are designed to measure air velocity, temperature, humidity, CO and CO2. Calculations include air flow, heat flow, turbulence, wet bulb and dew point temperature.


Best in class accuracy, especially in low flows

Displays up to 5 measurements simultaneously

Large graphic display

Manual or continuous data logging

Name test IDs meaningful to you

Bluetooth® printer capability

Fast calibration and repair service—just send in the probe


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 Range250 to 15,500 ft/min (1.27 to 78.7 m/s)
Velocity Accuracy±1.5% at 2,000 ft/min (10.16 m/s)
Operating Temperature Range40 to 113°F (5 to 45°C)
Logging Interval1 second to 1 hour
DimensionsUS: 3.8 x 8.3 x 2.1 in. Metric: 9.7 x 21.1 x 5.3 cm
WeightUS: 0.8 lb. Metric: .36 kg
Manuals, Data Sheets & Software