Multi Function Ventilation Meters

Multi-function ventilation meters combine key measurements — air velocity, flow, temperature, humidity, and sometimes CO2 or CO — into one portable platform. With interchangeable probes such as hot-wire, thermal anemometers, and rotating vanes, they help TAB and HVAC technicians balance diffusers, set outdoor air, verify hood face velocities, and assess comfort parameters. Onboard averaging, timed tests, and app-enabled logging simplify data collection. Fewer tools to carry and unified reporting help teams work faster and deliver clear results.

Products

VelociCalc Multi-Function Ventilation Meter 9565

Measures velocity, temperature, humidity, differential pressure, barometric pressure and has...

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VelociCalc Multi-Function Ventilation Meter 9565-A

Measures velocity, temperature, humidity, differential pressure, barometric pressure and has...

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VelociCalc Multi-Function Ventilation Meter 9565-P

Measures differential pressure, barometric pressure and has inputs for two K alloy thermocouples....

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VelociCalc Multi-Function Ventilation Meter 9565-X

Measures barometric pressure and has inputs for two K alloy thermocouples. Data logging included....

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VelociCalc Air Velocity Meter 9565-AC

VelociCalc Air Velocity Meter 9565-A-AC

VelociCalc Air Velocity Meter 9565-P-AC

VelociCalc Air Velocity Meter 9565-NB

VelociCalc Air Velocity Meter 9565-NB-AC

VelociCalc Air Velocity Meter 9565-A-NB

VelociCalc Air Velocity Meter 9565-A-NB-AC

VelociCalc Air Velocity Meter 9565-P-NB

VelociCalc Air Velocity Meter 9565-P-NB-AC

VelociCalc Multi-Function Ventilation Meter 9600

The 9600 VelociCalc is a portable, handheld Multi-Function Ventilation and IAQ test instrument...

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VelociCalc Multi-Function Ventilation Meter 9630

The 9630 VelociCalc is a portable, handheld Multi-Function micromanometer featuring a menu-driven...

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VelociCalc Multi-Function Ventilation Meter 9650

The 9650 VelociCalc is a portable, handheld Multi-Function micromanometer featuring a menu-driven...

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VelociCalc 9600-AC

VelociCalc AC9600-980

VelociCalc AC9600-982

VelociCalc AC9600-995

VelociCalc AC9600-960

VelociCalc AC9600-962

VelociCalc 9630-AC

VelociCalc AC9630-982

VelociCalc AC9630-964

VelociCalc AC9630-966

VelociCalc 9600-960

VelociCalc 9600-962

VelociCalc 9600-980

VelociCalc 9600-982

VelociCalc 9600-995

VelociCalc 9630-964

VelociCalc 9630-966

VelociCalc 9630-982

VelociCalc 9650-NB

VelociCalc 9650-NB-964

VelociCalc 9650-NB-966

VelociCalc 9650-964

VelociCalc 9650-966

VelociCalc 9650-AC

VelociCalc AC9650-964

VelociCalc AC9650-966

VelociCalc 9650-NB-AC

VelociCalc AC9650-NB-964

VelociCalc AC9650-NB-966

Multi-function ventilation meters help consolidate fieldwork by bringing several measurements into a single, easy-to-carry instrument. TAB and HVAC service teams use them to verify diffuser performance, set outdoor air fractions, measure hood face velocity, and assess comfort with temperature and humidity checks. When equipped with the right probe, a single meter can cover low-velocity supply grilles, higher-flow exhausts, and mixed-flow diffusers — saving time and simplifying documentation.

Interchangeable probes make these meters flexible. Hot-wire or thermal anemometer probes offer high sensitivity at low to medium velocities, while rotating vane probes provide robust readings at higher flows and on larger grilles. Some platforms also support CO2 and CO spot checks, giving a quick read on IAQ during diagnostics or commissioning.

Features that drive productivity:

  • Interchangeable velocity probes with automatic recognition and calibration data
  • Averaging, timed tests, and diversity factors for diffuser balancing
  • On-screen guidance for traverse points and hood calculations (when applicable)
  • Temperature and humidity measurements to correlate comfort and system operation
  • Wireless connectivity to label spaces, attach photos, and export datasets
  • Ruggedized designs to handle daily use on ladders and in mechanical spaces

Typical applications:

  • Balancing supply and return diffusers in residential and commercial buildings
  • Verifying outdoor air intake and economizer settings
  • Measuring hood face velocity in labs and shops
  • Spot-checking IAQ parameters during service calls
  • Documenting before/after performance for retrofits

Selection tips:

  • Choose probes that match your velocity range and diffuser sizes
  • Confirm accuracy specifications for low-flow applications
  • Look for ergonomic probe lengths for ceiling diffusers and hard-to-reach grilles
  • Evaluate data workflow — batch labeling, averaging, and PDF/CSV export can save hours

Best practices:

  • Use consistent measurement grids across diffusers for comparable results
  • Stabilize readings with appropriate damping and averaging time
  • Record environmental conditions to contextualize airflow readings
  • Maintain calibration intervals to support traceable results

By combining multiple measurements into one platform, multi-function ventilation meters help teams produce faster, clearer reports and support more informed adjustments to ventilation and comfort settings.


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