Ventilation duct

Observance of air flows in the ventilation duct is of utmost importance for the function of the ventilation and air conditioning system. If the air flows are smaller than intended, the removal of room loads (heating, cooling and substance loads) may not be ensured in certain circumstances. Therefore, the most accurate recording of air flows as possible is particularly important.

39 products or recommendations for Ventilation duct
  • 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 

  • 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

    ₱40 940.00
    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)

  • 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

  • testo 400 air flow kit with 16 mm vane probe

    Order-Nr. 0563 0400 72

    Ideal kit for IAQ professionals, with a focus on air flow measurement. You will receive the testo 400 universal IAQ measuring instrument with intuitive measurement menus, one vane probe head (Ø 16 mm), one vane probe head (Ø 100 mm) and one high-precision humidity/temperature probe head – all three can be attached to the Bluetooth® handle supplied. For measurements at ceiling outlets, simply combine the 100 mm vane probe with the telescope (can be extended up to 1.0 m) and the 90° angle.
    • Standard-compliant determination of the volume flow in ducts using grid measurements as per EN ISO 12599 and ASHRAE 111

    • Determination of the volume flow at outlets by measuring the reference pressure and entering the manufacturer-specific K-factor

    • Smart, intuitive measurement programs, complete your measurement with full documentation on site at the customer’s premises or carry out further analysis using the testo DataControl measurement data management and analysis software

    • In the kit: testo 400 universal IAQ instrument, 16 mm vane probe (with Bluetooth® handle and telescope), vane probe head (Ø 100 mm), high-precision humidity/temperature probe head, 90° angle, case

  • testo 400 air flow kit with hot wire probe

    Order-Nr. 0563 0400 71

    Ideal kit for IAQ professionals, with a focus on air flow measurement. You will receive the testo 400 universal IAQ measuring instrument with intuitive measurement menus, one hot wire probe head (including temperature and humidity sensor), one vane probe head (Ø 100 mm) and one high-precision humidity/temperature probe head – all three can be attached to the Bluetooth® handle supplied. For measurements at ceiling outlets, simply combine the 100 mm vane probe with the telescope (can be extended up to 1.0 m) and the 90° angle.
    • Standard-compliant determination of the volume flow in ducts using grid measurements as per EN ISO 12599 and ASHRAE 111

    • Determination of the volume flow at outlets by measuring the reference pressure and entering the manufacturer-specific K-factor

    • Smart, intuitive measurement programs, complete your measurement with full documentation on site at the customer’s premises or carry out further analysis using the testo DataControl measurement data management and analysis software

    • In the kit: testo 400 universal IAQ instrument, hot wire probe (with Bluetooth® handle and telescope), vane probe head (Ø 100 mm), high-precision humidity/temperature probe head, 90° angle, case

  • 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

  • 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

    ₱11 395.00
    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 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

    ₱43 965.00
    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

  • testo 435-2 - Indoor air quality meter

    Order-Nr. 0563 4352

    The testo 435-2 indoor air quality meter allows you to carry out all the measurements that are necessary to check and adjust ventilation and air conditioning systems and assess the quality of the indoor air. Select from a wide range of probes and sensors. Because it’s you know best what your meter needs to be able to do!
    • Comprehensive range of measuring functions using optionally available accessories – e.g. anemometers, moisture sensors, lux and degree of turbulence sensors

    • Super-size memory for up to 10 000 readings

    • Displays dew point difference, min, max and mean values

    • PC software for analyzing and logging measuring data

  • 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

    • Integrated density compensation

    • Backlit display, min/max values, hold function

    ₱38 015.00
    excl. VAT
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