Velocity

Every duct inlet and outlet should only contain the volume flow that is the basic requirement for a system to work efficiently. Testo offers a variety of measuring instruments to measure volume flows or air velocity at air inlets and outlets.

102 products or recommendations for Velocity
  • 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 

    129,00 €
    excl. VAT
  • testo 425 - Thermal anemometer with flow probe

    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.
    • Temperature and flow measurement as well as volumetric flow calculation

    • Permanently attached extendible telescopic probe – maximum length 820 mm, diameter 7.5 mm

    • With single and multi-point averaging

    • Hold function, display of min/max value, Auto-off function

    406,00 €
    excl. VAT
  • 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 Probes 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 Probes App (e.g. easy viewing of readings, measurement data trend, log function)

    90,00 €
    excl. VAT
  • testo Smart Probes VAC set - with smartphone operation

    Order-Nr. 0563 0003

    With the Testo Smart Probes 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

    315,00 €
    excl. VAT
  • testo 510 i - differential pressure measuring instrument with smartphone operation

    Order-Nr. 0560 1510

    Handy and intelligent: the compact testo 510i differential pressure measuring instrument featuring professional measuring technology and smartphone operation for measuring differential pressure, air flow velocity and volume flow. Readings can be viewed conveniently on your smartphone/tablet via the testo Smart Probes App and emailed directly.
    • Measurement of gas flow and static pressure

    • Measurement menu for pressure drop test including alerts

    • Simple configuration and determination of volume flow with Pitot tube

    • Magnetic holder for easy attachment

    85,00 €
    excl. VAT
  • testo 440 Hot Wire Kit

    Order-Nr. 0563 4400

    Kit for carrying out measurements in ventilation ducts: the testo 440 air velocity and IAQ measuring instrument and the hot wire probe (Ø 9 mm) including temperature sensor are all safely stowed away in the case. So you can get down to work straight away!
    • Intuitive: clearly structured measurement menu for volume flow and parallel determination of air velocity, volume flow and air temperature in ventilation ducts

    • Convenient: integrated telescope that can be extended to 0.85 m, with scaling, makes it easy to carry out measurements

    • Reliable: absolute pressure compensation, internal data storage and USB port for data export

    • As multifaceted as your challenges themselves: the air velocity and IAQ measuring instrument can be expanded with a large portfolio of digital probes

  • testo 440 16 mm Vane Kit

    Order-Nr. 0563 4401

    Kit for carrying out measurements in ventilation ducts: the testo 440 air velocity and IAQ measuring instrument and the vane probe (Ø 16 mm) are safely stowed away in the case. So you can get down to work straight away!
    • Intuitive: clearly structured measurement menu for volume flow and determination of air velocity in ventilation ducts

    • Convenient: integrated telescope that can be extended to 0.85 m, with scaling, makes it easy to carry out measurements

    • Reliable: internal data storage and USB port for data export

    • As multifaceted as your challenges themselves: the air velocity and IAQ measuring instrument can be expanded with a large portfolio of digital probes

  • testo 405 - Thermal anemometer

    Order-Nr. 0560 4053

    Use the testo 405 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.
    • Measurement of air velocity, volumetric flow and air temperature

    • For measurements in ventilation ducts and in rooms

    • Particularly precise in the range between 0 and 2 m/s

    • Telescope extendible to 300 mm

    113,00 €
    excl. VAT
  • testo 440 Air Flow ComboKit 1 with Bluetooth®

    Order-Nr. 0563 4406

    Kit for carrying out measurements in ventilation ducts and at air outlets: The testo 440 air velocity and IAQ measuring instrument, the vane probe (Ø 100 mm) with Bluetooth® including temperature sensor and the hot wire probe including temperature sensor are all safely stowed away in the case. So you can get down to work straight away!
    • Intuitive: clearly structured measurement menu for volume flow and parallel determination of air velocity, humidity and temperature in ventilation ducts or at ventilation outlets

    • Clever: hot wire probe with telescope (0.85 m) – combine the vane probe (Ø 100 mm) with Bluetooth with the telescope for ceiling outlets or the funnel set for plate outlets (please order separately) as required

    • Convenient: wireless probe, internal data storage and USB port for data export

    • As multifaceted as your challenges themselves: the air velocity and IAQ measuring instrument can be expanded with a large portfolio of digital probes

  • testo 440 Air Flow ComboKit 2 with Bluetooth®

    Order-Nr. 0563 4407

    Kit for carrying out measurements in ventilation ducts and at air outlets: The testo 440 air velocity and IAQ measuring instrument, the vane probe (Ø 100 mm) with Bluetooth® including temperature sensor and the vane probe (Ø 16 mm) are all safely stowed away in the case. So you can get down to work straight away!
    • Intuitive: clearly structured measurement menu for volume flow and determination of air velocity, humidity and temperature in ventilation ducts or at ventilation outlets

    • Clever: vane probe (Ø 16 mm) with telescope (0.85 m) – combine the vane probe (Ø 100 mm) with Bluetooth with the telescope for ceiling outlets or the funnel set for plate outlets (please order separately) as required

    • Convenient: wireless probe, internal data storage and USB port for data export

    • As multifaceted as your challenges themselves: the testo 440 can be expanded with a large portfolio of digital probes

  • testo 440 Indoor Comfort ComboKit with Bluetooth®

    Order-Nr. 0563 4408

    Use this practical Indoor Comfort ComboKit to handle all relevant measurements in order to evaluate the indoor air quality in indoor areas and to determine the draught risk and degree of turbulence in workplaces. The testo 440 air velocity and IAQ measuring instrument, the CO2 probe with Bluetooth® including temperature and humidity sensor and the turbulence probe are all safely stowed away in the case. So you can get down to work straight away!
    • Intuitive: clearly structured measurement menu for long-term measurement and parallel determination of CO₂ concentration, humidity, air temperature and degree of turbulence in workplaces

    • Precise: calculation of wet bulb temperature, dew point and absolute humidity – determination of the degree of turbulence and draught risk according to EN ISO 7730 / ASHRAE 55

    • Convenient: wireless probe, internal data storage and USB port for data export

    • As multifaceted as your challenges themselves: the air velocity and IAQ measuring instrument can be expanded with a large portfolio of digital probes

  • testo 440 delta P Air Flow ComboKit 1 with Bluetooth®

    Order-Nr. 0563 4409

    Carry out measurements without any annoying cables: use the kit to handle all relevant measurements in ventilation ducts and at air/ceiling outlets. You will receive the testo 440 dP air velocity and IAQ measuring instrument including differential pressure sensor and the 100 mm vane probe head and hot wire probe head (Ø 9 mm) for attachment to the universal Bluetooth® handle supplied. To make measurements more convenient, both probe heads can be combined with the telescope included in the kit. The equipment can be transported safely and conveniently in the robust case.
    • Intuitive: clearly structured measurement menu for volume flow and parallel determination of air velocity, differential pressure, humidity and temperature in ventilation ducts or at ventilation outlets

    • Space-saving: simply combine the universal Bluetooth handle with the 100 mm vane or hot wire probe head and the extendable telescope (1.0 m)

    • Convenient: wireless probes, internal data storage and USB port for data export

    • As multifaceted as your challenges themselves: the testo 440 dP has an integrated differential pressure sensor and can be expanded with a large portfolio of digital probes

  • testo 440 delta P Air Flow ComboKit 2 with Bluetooth®

    Order-Nr. 0563 4410

    Carry out measurements without any annoying cables: use the kit to handle all relevant measurements in ventilation ducts and at air/ceiling outlets. You will receive the testo 440 dP air velocity and IAQ measuring instrument including differential pressure sensor, two vane probe heads (Ø 100 mm and Ø 16 mm) and a humidity/temperature probe head – all three can be attached to the universal Bluetooth® handle supplied. To make measurements more convenient, both vane probe heads can be combined with the telescope included in the kit. The equipment can be transported safely and conveniently in the robust case.
    • Intuitive: clearly structured measurement menu for volume flow and parallel determination of air velocity, differential pressure, humidity and temperature in ventilation ducts, at ventilation outlets and in work rooms

    • Space-saving: combine the universal Bluetooth handle with the humidity/temperature probe head or extendable telescope (1.0 m). Vane probe heads (Ø 16 mm, Ø 100 mm) can simply be plugged onto the telescope

    • Convenient: wireless probes, internal data storage and USB port for data export

    • As multifaceted as your challenges themselves: the testo 440 dP has an integrated differential pressure sensor and can be expanded with a large portfolio of digital probes

  • testo 416 - 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

    436,00 €
    excl. VAT
  • testo 480 - Digital temperature, humidity and air flow meter

    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 digital temperature, humidity and air flow meter comes with a wide range of optional sensors that allow you to measure, analyse and log these and a variety of other parameters with only one device.
    • High-quality optional sensors for measuring air flow, temperature, humidity, pressure, degree of turbulence, heat radiation, CO2, illumination intensity, PMV/PPD and WBGT

    • High-precision, integrated pressure sensor included

    • Pro-software for easy and efficient analysis and logging included

    • Intelligent calibration concept

    930,00 €
    excl. VAT
  • testo 410-2 - Vane anemometer

    Order-Nr. 0560 4102

    Ideal for rapid 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.
    • Permanently installed vane with a diameter of 40 mm

    • Measurement of air velocity, air temperature and humidity

    • Calculates dew point and wet bulb temperature, wind chill and Beaufort wind force

    • Includes single-point averaging, max/min and Hold function

    140,00 €
    excl. VAT
  • testo 410-1 - 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.
    • Vane anemometer with permanently installed 40 mm vane

    • Measurement of air velocity and air temperature

    • Calculates wind chill and the Beaufort wind force

    • Practical: with single-point averaging, max/min and Hold function

    90,00 €
    excl. VAT
  • testo 435-4 - Multifunction indoor air quality meter

    Order-Nr. 0563 4354

    The testo 435-4 multifunction indoor air quality meter allows you to carry out all the measurements you need to inspect and adjust ventilation and air conditioning systems and to check the quality of the indoor air. There is also an integrated pressure difference sensor for pitot static tube measurements and filter monitoring and a wide range of optionally available sensors and probes to choose from.
    • Includes pressure difference sensor for pitot static tube measurements or filter monitoring

    • Further sensors optionally available (eg. anemometer, moisture sensors, lux and degree of turbulence sensors) for a variety of different measuring applications

    • Super-size memory for up to 10 000 measurements

    • PC software for analyzing and logging measuring data

    700,00 €
    excl. VAT
  • 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 Probes 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 Probes App

    75,00 €
    excl. VAT
  • 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

    387,00 €
    excl. VAT
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