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!

66 Products found
  • testo 480 - Climate Measurement Tool 

    Order-Nr. 0563 4800

    Air flow measurements in ducts, temperature measurements in laboratories, humidity measurements in production, pressure difference measurements in clean rooms. The Testo 480 climate measurement meter with a wide range of optional probes that allows you to measure, analyse and log these and a variety of other parameters with only one device. 

    • Measure multiple parameters Temperature, Humidity, Pressure Turbulence, Heat radiation, Co2 Lux, PMV/PPD, WBGT 

    • Professional software for reporting & data logging 

    • Highly accurate digital probes 

    • Intelligent calibration concept

    $1,901.90
    incl. GST
  • testo Smart Probes VAC set - with smartphone operation

    Order-Nr. 0563 0003

    With the Testo Smart Tools VAC set, you can check air velocities, humidity, volume flows and temperatures in, on and around air conditioning systems. The robust testo Smart Case enables the measuring instruments to be conveniently transported and ensures that they are always to hand when needed.

    • Easy parametrization of the outlet/duct cross-section for measuring the volume flow

    • List of multiple volume flows and calculation of the total volume flow (in the log)

    • Identification of mould risk thanks to the combined utilization of testo 605i and testo 805i

    • Rapid image documentation with IR temperature readings and measuring spot marking

    $590.70
    incl. GST
  • 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. 

    $4,013.90
    incl. GST
  • testo 435-2 - Multi Function IAQ Instrument 

    Order-Nr. 0563 4352

    The Testo 435-2 multi function meter is designed to allow you to carry out multiple measurements that are necessary to check and adjust ventilation and air conditioning systems and assess the quality of the indoor air. 

    • Measures Multiple Parameters
      C, RH, Co2, Co, Pressure, Draught,
      Air velocity, Volumetric Flow, Turbulance,
      U Value, Lux 

    • Illuminated Display 

    • Large Range of Probes 

    • Large display 

    $1,061.50
    incl. GST
  • 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 

    $761.20
    incl. GST
  • 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

    $817.30
    incl. GST
  • 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 

    $211.20
    incl. GST
  • testo 445 - climate measuring instrument

    Order-Nr. 0560 4450

    You can keep a close eye on indoor air quality with the testo 445 climate measuring instrument: the allrounder can measure up to 6 parameters (with the appropriate probe), which can help you make a professional assessment of indoor air quality. The climate measuring instrument therefore supports you in adjusting and checking ventilation and air conditioning systems.

    • Multi-function climate measuring instrument: measure up to 6 measurement parameters at the same time

    • Internal reading memory for up to 3,000 readings

    • Automatic allocation of the duct cross-section to the measuring location (max. 99 measuring locations)

    • Automatic mean value calculation and determination of the volume flow

    $1,143.00
    incl. GST
  • 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) 

    $168.30
    incl. GST
  • 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 40MM vane 

    • 2 in 1 Air Velocity & Air Temperature 

    • Windchill calculation for outside areas
      (perceived temperature) 

    • Calculates dew point and wet bulb temperature 

    $261.80
    incl. GST
  • 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 

    $139.70
    incl. GST
  • testo 435-1 - Temp, Humidity, Co2 & Absolute Pressure 

    Order-Nr. 0560 4351

    The Testo 435-1 IAQ Kit is a multifunction instrument for measuring and assessing Indoor Air Quality and for adjusting and inspecting VAC systems.The Testo 435-1 is an affordable introduction to measurement engineering for ambient air conditions. Readings from up to 3 temperature probes can be displayed on the screen. Measurement data can also be printed on site with the Testo printer. 

    • Measures Multiple Parameters
      Temperature, Humidity, CO2, Pressure 

    • Illuminated Display 

    • Large Range of Probes 

    • Large display 

    $806.30
    incl. GST
  • 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. 

    • Anemometer with 40MM vane 

    • 2 in 1 Air Velocity & Air Temperature 

    • Windchill calculation for outside areas
      (perceived temperature) 

    • Timed mean value calculation 

    $168.30
    incl. GST
  • 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 

    $706.20
    incl. GST
  • 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

    $706.20
    incl. GST
  • 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 

    $706.20
    incl. GST
  • 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

    $1,337.00
    incl. GST
  • 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
       

    $1,374.00
    incl. GST
  • 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
       

    $1,672.00
    incl. GST
  • testo 510 - Differential pressure meter

    Order-Nr. 0560 0510

    The Testo 510 differential pressure meter allows you to carry out pressure difference measurements in air condtioning systems or air flow measurements in ventilation ducts using a pitot tube. The trusty and reliable meter has been tried and tested in the field and is ideal for installation and maintenance work in and around ventilation and air conditioning. 

    • Differential pressure from 0 to 100 hPa 

    • 10 Measurement unitsto choose from (hPa, mbar, mmHg, psi, m/s, fpm) 

    • Air flow measurements 

    • Temperature and air density compensation 

66 Products found
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