Velocity

HVAC systems depend on ventilation to cool and heat indoor environments. Moderate fluctuations in airflow and velocity can hinder an HVAC system's efficiency, thereby increasing the costs associated with running such appliances.
Testo's range of airflow and velocity instruments help HVAC technicians assess systems for potential problems. Our digital anemometers can enlighten you to detect problems in facilities and equipment.

While airflow may seem like a negligible factor, improper velocity can compromise indoor air quality, increase utility expenses, cause heat exchanger failures and introduce a wide array of other problems. The parameters dictated at the appliance may not correspond with the velocity present at intake and outflow vents, and Testo's instruments can ensure this consistency.
 
Testo also offers a range of Pitot tubes that allow professionals to measure velocity and airflow. Manufactured with stainless steel, these extensions can withstand the rigours of various environments and are needed attachments for many of our instruments.
If you'd like to know which testo instruments these pitot tubes can complement, speak with one of our knowledgeable experts today.
 
Did you know: Testo Anemometers are sensitive and accurate enough to measure the air current generated by the fluttering of butterfly wings!

96 products or recommendations for Velocity
  • testo 420 - Air Flow Hood 

    Order-Nr. 0563 4200

    The Testo 420 volume flow hood is suited for HVAC systems and comes with a control panel for displaying measurement data. The control panel can be tilted or removed to suit user requirement. 
    • 16 measurement points that records Temperature, Humidity, Differential & Absolute Pressure. 

    • Highly precise readings at swirl outlets thanks to flow straightener. 

    • IOS & Andriod App Integration via Bluetooth connectivity. 

    • Onsite report generation & email. 

    $4 199.00
    incl. GST  $4 618.90
  • testo 416 - Small Head Vane Anemometer 

    Order-Nr. 0560 4160

    Vane anemometer with telescopic sensor – ideal for carrying out airflow measurements in air ducts.
    • Permanently connected telescopic sensor – maximum length 890 mm, diameter 16 mm

    • Airflow measurements, selective and time mean values for calculating air volume

    • Hold function; min/max display; auto power off

    • Calibration certificate and batteries included

    $863.00
    incl. GST  $949.30
  • testo 425 - Thermal Anemometer 

    Order-Nr. 0560 4251

    The functional testing of ventilation and air conditioning systems includes monitoring the flow speed in ventilation ducts. If the air flow velocity and volumetric flow are not set correctly, the room air quality may suffer. The testo 425 thermal anemometer measures the flow speed and automatically calculates the volumetric flow.
    • 3 in 1 Measurements Temperature, air flow & volumetric flow calcualtion 

    • Extendable telescopic probe 

    • Single & multi-point averaging 

    • Hold button to freeze readings 

    $822.00
    incl. GST  $904.20
  • testo 410-2 - Velocity Humidity and Temperature Meter 

    Order-Nr. 0560 4102

    Ideal for quick measurement at ventilation grilles (air outlets) and for inspecting air conditions – also outdoors: use the Testo 410-2 vane anemometer to measure humidity, as well as air velocity and air temperature. Dew point and wet bulb temperature, wind chill or Beaufort wind force: the anemometer can accomplish the calculation of all these parameters at the touch of a button. 
    • Anemometer with 30MM vane 

    • 2 in 1 Air Velocity & Air Temperature 

    • Windchill calculation for outside areas
      (perceived temperature) 

    • Calculates dew point and wet bulb temperature 

    $250.00
    incl. GST  $275.00
  • testo 405 i - thermal anemometer with smartphone operation

    Order-Nr. 0560 1405

    With the testo 405i hot wire anemometer, you can measure air velocities, temperatures and volume flows. Via Bluetooth, the readings are transmitted wirelessly straight to the testo Smart Tools App on your smartphone or tablet. You can view the values conveniently and use numerous intelligent features: 
    • for measuring volume flow, air velocity and temperature

    • Simple configuration of the dimension and geometry of the duct cross-section for determining the volume flow

    • Convenient for working in ventilation ducts thanks to its telescopic tube, which can be extended up to 400 mm

    • Really convenient to operate thanks to the testo Smart Tools App (e.g. easy viewing of readings, measurement data trend, log function) 

    Price on Request
  • testo 410 i - vane anemometer with smartphone operation

    Order-Nr. 0560 1410

    Professional measuring technology in a small format: the compact testo 410i vane anemometer with smartphone operation measures the volume flow, air velocity and temperature at air outlets quickly and reliably. The testo Smart Tools App enables readings to be viewed conveniently and offers intelligent additional functions. 
    • Measurement of air velocity, volume flow and temperature

    • Display of the volume flow of multiple outlets in order to adjust systems

    • Easy parametrization of the outlet (dimension and geometry)

    • Convenient viewing of readings on a smartphone/tablet with the testo Smart Tools App 

    Price on Request
  • testo 417 Set 2 - vane anemometer set

    Order-Nr. 0563 4172

    Get the testo 417 vane anemometer with integrated 100 mm vane now, in a set that includes two measurement funnels, a volume flow straightener and other accessories. This ideally equips you to carry out volume flow measurement at plate outlets, ventilation grilles and swirl outlets.
    • testo 417 vane anemometer for measuring air flow velocity, volume flow and temperature

    • Attachable measurement funnels make this ideal for measuring volume flow at ventilation outlets

    • Also suitable for swirl outlets: thanks to the flow straightener, precise measurements can also be taken at swirl outlets

    • Important accessories included in the set: measurement funnels, flow straightener and a bag for storage

    $927.00
    incl. GST  $1 019.70
  • testo 410-1 - Pocket Sized Vane Anemometer 

    Order-Nr. 0560 4101

    The Testo 410-1 vane anemometer measures air velocity and air temperature. Use it to carry out quick spot measurements at ventilation grilles (air outlets). The anemometer is also ideal for use outdoors. It displays the units m/s, km/h, fpm, mph and kts, and also calculates wind chill and the Beaufort wind force. 
    • 2 in 1 Air Velocity & Air Temperature 

    • Windchill calculation for outside areas
      (perceived temperature) 

    • Timed mean value calculation 

    $162.00
    incl. GST  $178.20
  • testo 512 - 0-2hPa Pressure Meter 

    Order-Nr. 0560 5126

    The testo 512 differential pressure meter is available as four different models. This model has a measuring range from 0-2hPa and is ideal for measuring pressure differences at filters and for carrying out pitot static tube measurements in air ducts at air flow speeds between 2 and 17,5 m/s.
    • 8 measurement units to choose from: psi, kPa, hPa, Pa, mm H2O, mmHg, inch H2O, inch Hg

    • Built In Density Compensation 

    • Simlutaneous Display Of Flow & Pressure Values 

    • 2 Measuing Units For Flow m/s, fpm 

    $745.00
    incl. GST  $819.50
  • testo 521-1 - differential pressure measuring instrument (0.2 % of f.v.)

    Order-Nr. 0560 5210

    The high-precision testo 521-1 differential pressure measuring instrument is ideal for accurate differential pressure measurements in air conditioning and ventilation technology, for instance for pressure drop on filters, checking fans and extractors or for Pitot tube measurements.
    • Integrated differential pressure sensor with an accuracy of 0.2 % of f.v.

    • Calculation of the flow velocity and the volume flow via Pitot tube (optional)

    • Multi-point and timed mean calculation

    • 2 probe inputs for additional pressure and temperature probes

    $1 588.00
    incl. GST  $1 746.80
  • testo 521-3 - Differential pressure measuring instrument (up to 2.5 hPa)

    Order-Nr. 0560 5213

    The testo 521-3 high-precision differential pressure measuring instrument easily determines even the smallest differential pressures (up to +2.5 hPa). Its high accuracy and a resolution of 0.1 Pa make the instrument ideal for differential pressure measurements in clean rooms or for flue inspections.
     
    • Integrated temperature-compensated differential pressure sensor with accuracy of up to ± 0.5 Pa

    • Calculation of the flow velocity and the volume flow via Pitot tube (optional)

    • Direct zeroing of the display values of pressure probes

    • 2 probe inputs for additional pressure and temperature probes
       

    $1 633.00
    incl. GST  $1 796.30
  • testo 521-2 - differential pressure measuring instrument (0.1 % of f.v.)

    Order-Nr. 0560 5211

    The high-precision testo 521-2 differential pressure measuring instrument is ideal for accurate differential pressure measurements in air conditioning and ventilation technology, for instance for pressure drop on filters, checking fans and extractors or for Pitot tube measurements.
    • Integrated differential pressure sensor with an accuracy of 0.1 % of f.v.

    • Calculation of the flow velocity and the volume flow via Pitot tube (optional)

    • Multi-point and timed mean calculation

    • 2 probe inputs for additional pressure and temperature probes
       

    $1 983.00
    incl. GST  $2 181.30
  • testo 512 - Differential pressure meter for 0…200 hPa

    Order-Nr. 0560 5128

    The testo 512 differential pressure meter is available as four different models. This model has a measuring range from 0…200 hPa and is ideal for measuring pressure differences at filters and for carrying out pitot static tube measurements in air ducts at air flow speeds between 10 and 100 m/s.
    • 8 measurement units to choose from: psi, kPa, hPa, Pa, mm H2O, mmHg, inch H2O, inch Hg 

    • 2 air flow units to select from: m/s, fpm

    • Simlutaneous Display Of Flow & Pressure Values 

    • 2 Measuing Units For Flow m/s, fpm 

    $745.00
    incl. GST  $819.50
  • testo 512 - 0-20 hPa Pressure Meter 

    Order-Nr. 0560 5127

    The testo 512 differential pressure meter is available as four different models. This model has a measuring range from 0….20 hPa and is ideal for measuring pressure differences at filters and for carrying out pitot static tube measurements in air ducts at air flow speeds between 5 and 55 m/s.
    • 8 measurement units to choose from: psi, kPa, hPa, Pa, mm H2O, mmHg, inch H2O, inch Hg

    • 2 air flow units to select from: m/s, fpm

    • Integrated density compensation

    • Backlit display, min/max values, hold function

    $745.00
    incl. GST  $819.50
  • testo 405 - Low Cost Thermal Anemometer 

    Order-Nr. 0560 4053

    Use the testo 405 Low Cost Thermal Anemometer to measure air velocity, volumetric flow and air temperature. It is suitable for carrying out quick check measurements in ventilation ducts and for measuring the air velocity in rooms, e.g. at draughty windows. 
    • 3 in 1 Air temperature, air velocity
      & volumetric Air flow 

    • Telescopic handle to 300 mm 

    • Illuminated display

    • Volume flow calculation up to 99,990 m3/h 

    $198.00
    incl. GST  $217.80
  • testo 417 set 1 - Vane anemometer set

    Order-Nr. 0563 4171

    Make sure you get the testo 417 vane anemometer with an integrated 100 mm vane, in a set that includes two measurement funnels and other accessories. This will mean you are ideally equipped for volumetric flow measurement at ventilation grilles and poppet valves.
    • testo 417 vane anemometer for measuring flow velocity, volumetric flow and temperature

    • Attachable measurement funnels make it ideal for volumetric flow measurement at ventilation outlets

    • Simple testing of incoming / outgoing air in controlled ventilation of living spaces

    • Important accessories included in the set: measurement funnels for poppet valves and ventilation grilles, along with a bag for storage

    $775.00
    incl. GST  $852.50
  • testo 510 set - differential pressure measuring instrument

    Order-Nr. 0563 0510

    Differential pressure measurement on gas hot water heaters or on filters of air conditioning systems, and also flow measurements in ventilation ducts using a Pitot tube: the compact testo 510 differential pressure measuring instrument, which comes with a silicone connection hose and other useful accessories, can help you maintain and install systems in the sanitary and HVAC sector.
    • Differential pressure measurement from 0 to 100 hPa 

    • Flow measurement possible with a Pitot tube (available as an option)  

    • Magnets on the rear allow hands-free work 

    • 10 units to choose from, display in pascals can be selected 

    $252.00
    incl. GST  $277.20
  • testo Smart Probes HVAC/R Ultimate kit

    Order-Nr. 0563 0002 31

    Ultimate kit for all-round engineers in the field of heating, air conditioning, refrigeration and ventilation: The kit contains all the testo Smart Probes and is ideal for carrying out functional checks or for plant maintenance, in conjunction with your smartphone/tablet. The testo Smart Probes App enables you to work more easily and efficiently: Automatically calculate numerous parameters such as superheating/subcooling, target superheat, cooling/heating power, differential temperature or mould indication. Measurement data reports can be emailed directly as a PDF or Excel file.
    • For all measurements involving heating, air-conditioning, refrigeration and ventilation systems

    • All Smart Probes for temperature, pressure, humidity and flow in one kit

    • Display of measurement data progression as a graph or table

    • Transmission and analysis of measurement data via testo Smart Probes App

  • testo Smart Probes VAC kit

    Order-Nr. 0563 0003 10

    For air-conditioning engineers: Compact kit containing four measuring instruments for your most important measuring tasks in, on and involving air conditioning systems. The testo Smart Probes App enables you to work more easily and efficiently: Use intuitive measurement menus for volume flow measurement, for automatic calculation of the dew point and wet bulb temperature or for detecting areas susceptible to mould according to the traffic light principle. Measurement data reports can be emailed directly as a PDF or Excel file.
    • Measurement of air and surface temperature, humidity, air velocity and volume flow

    • Measurement menus for volume flow measurement in ducts and at outlets, identification of mould risk, easy image documentation including IR temperature reading and measurement spot marking

    • Display measurement data as a graph or table and analyze and send via testo Smart Probes App

    • In conjunction with your smartphone/tablet, carry out the most important measurements involved in air conditioning systems

  • testo 400 - Universal IAQ instrument

    Order-Nr. 0560 0400

    The testo 400 is the universal measuring instrument for all IAQ professionals. Measure, analyze and document all IAQ and comfort level parameters using just one instrument – simply, conveniently and in compliance with the standards. High-quality measuring technology, intuitive measurement assistants, versatile documentation options and a comprehensive selection of IAQ probes make the testo 400 the perfect partner for your day-to-day work.
    • Smart, intuitive measurement programs including HVAC grid measurement as per EN ISO 12599 and ASHRAE 111, PMV/PPD and turbulence as per EN ISO 7730 and ASHRAE 55

    • High-precision, location-independent and integrated differential pressure sensor

    • Measure all IAQ-related parameters – with our wide range of probes for all IAQ measurements

    • Document measuring values directly on the customer's site and send them by e-mail, or further analyze them using the testo DataControl PC software

    Price on Request
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