Testo Measuring and Testing Devices

Ventilation Duct

Added to List

Observance of Ventilation Air Duct Airflows 

Accurate recording of air flows in the ventilation duct

Ensure the removal of room loads (heating, cooling and substance loads)

| 29803 |

Description

Ventilation and Air Conditioning Systems

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.

Observance of air flows in the ventilation duct is of utmost importance for the function of the ventilation and air conditioning system.

  • Accurate recording of air flows in the ventilation duct
  • Ensure the removal of room loads (heating, cooling and substance loads)

| 29803 |

Testo 510 set - differential pressure measuring instrument

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.

Additional Features

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

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.

Additional Features

3 in 1 Measurements Temperature, air flow & volumetric flow calculation | Extendable telescopic probe | Single & multi-point averaging | Hold button to freeze readings

Testo 405 i - thermal anemometer with smartphone operation

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.

Additional 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)

Testo Smart Probes HVAC/R Ultimate Kit

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 App enables you to work more easily and efficiently: Automatically calculate numerous parameters such as superheating/subcooling, target superheat, cooling/heating power or differential temperature. Measurement data reports can be emailed directly as a PDF or Excel file.

Additional Features

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 App

Testo Smart Probes VAC kit

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 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.

Additional Features

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

Testo 400 Universal IAQ Instrument

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.

Additional Features

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 Data Control PC software

Testo 400 Air Flow Kit with 16mm Vane Probe

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.

Additional Features

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 Data Control 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

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

Additional Features

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 Data Control 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 510i Differential Pressure Measuring Instrument with Smartphone Operation

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 Tools App and emailed directly.

Additional Features

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

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!

Additional Features

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 16mm Vane Kit

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!

Additional Features

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 Low Cost Thermal Anemometer

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.

Additional Features

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

Testo 440 Air Flow Combo Kit 1 with Bluetooth

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!

Additional Features

Intuitive: Clearly structured measurement menus for volume flow and parallel determination of air velocity, humidity, and temperature in ventilation ducts, or at ventilation outlets | Smart: Hot wire probe (0.85 m) with telescope (2.8') – combine the Bluetooth vane probe (Ø 100 mm") with the telescope for ceiling outlets, or the funnel set for plate outlets (sold separately) | Convenient: Wireless probes, internal memory for data storage, and USB port for data export | Versatile: Your Testo 440 setup can be expanded with a large selection of digital probes

Testo 440 Air Flow Combo Kit 2 with Bluetooth

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!

Additional Features

Intuitive: Clearly structured measurement menus for volume flow and determination of air velocity, humidity, and temperature in ventilation ducts, or at ventilation outlets​ | Smart: 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) |​ Convenient: wireless probe, internal data storage and USB port for data export​ | Versatile: Your Testo 440 setup can be expanded with a large selection of digital probes

Testo 440 Delta P Airflow Combo Kit 1 with Bluetooth

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.

Additional Features

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​ | Smart: 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 | Versatile: the Testo 440 has an integrated differential pressure sensor and can be expanded with a large portfolio of digital probes

Testo 440 Delta P Airflow Combo Kit 2 with Bluetooth

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.

Additional Features

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 | Smart: 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 into the telescope | Convenient: wireless probes, internal data storage and USB port for data export | Versatile: Testo 440 dP has an integrated differential pressure sensor and can be expanded with a large portfolio of digital probes

Testo 416 Small Head Vane Anemometer

Vane anemometer with telescopic sensor – ideal for carrying out airflow measurements in air ducts.

Additional Features

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

Testo 440 Air Velocity + IAQ Measuring Instrument

Precise, reliable measurement of all air velocity and IAQ parameters with just one measuring instrument: the multifunction measuring instrument features intuitive operation with clearly structured measurement menus. Adjusting air conditioning and ventilation systems, monitoring air quality or carrying out comfort level measurements – thanks to versatile options for combining with high-quality, digital probes, you are ideally equipped to carry out your measuring task (please order probes separately).

Additional Features

Intuitive: clearly structured measurement menus for volume flow, degree of turbulence, cooling/heating output, mould detection and long-term measurement, such as CO₂ | Wireless: Bluetooth® probes for extra convenience when measuring and less cable clutter in the measuring case (please order probes separately)| Clear overview: large graphic display with parallel display of 3 readings | Safe and reliable: internal data storage and USB port for data export

Testo 440 dP Air Velocity + IAQ Measuring Instrument including Differential Pressure Sensor

Precise, reliable measurement of all air velocity and IAQ parameters with just one measuring instrument: the multifunction measuring instrument features an integrated differential pressure sensor and intuitive operation with clearly structured measurement menus. Adjusting air conditioning and ventilation systems, monitoring air quality or carrying out comfort level measurements – thanks to versatile options for combining with high-quality, digital probes, you are ideally equipped to carry out your measuring task (please order probes separately).

Additional Features

Intuitive: clearly structured measurement menus for volume flow, K-factor, degree of turbulence, cooling/heating output, mould detection and long-term measurement, such as CO₂ | Wireless: Bluetooth® probes for extra convenience when measuring and less cable clutter in the measuring case (please order probes separately) | Clear and reliable: large graphic display with parallel display of 3 readings as well as internal data storage and USB port for data export | Includes a differential pressure sensor: for Pitot tube measurement and monitoring filters

Testo 512 Differential Pressure Meter for 0...200 hPa

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.

Additional Features

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 | Simultaneous Display Of Flow & Pressure Values | 2 Measuring Units For Flow m/s, fpm

Testo Smart Probes Heating Kit

For heating engineers: Compact kit containing three measuring instruments for carrying out your most important measuring tasks involving heating systems. The Testo Smart App enables you to work more easily and efficiently: Use the measurement menus for pressure drop test with alarm function or for non-contact IR temperature measurement with image documentation including measuring value and measurement spot marking. Measurement data reports can be emailed directly as a PDF or Excel file.

Additional Features

Non-contact temperature measurement, measurement of flow and return temperature as well as gas flow pressure | Measurement menu for pressure-drop test including alarm function | Display measurement data as a graph or table and analyze and send via Testo Smart App | In conjunction with your smartphone/tablet, measure and check all heating system temperatures and pressures

Testo 512 - 0-2hPa Pressure Meter

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.

Additional Features

8 measurement units to choose from: psi, kPa, hPa, Pa, mm H2O, mmHg, inch H2O, inch Hg | Built In Density Compensation | Simultaneous Display Of Flow & Pressure Values | 2 Measuring Units For Flow m/s, fpm

Testo 512 - 0-20hPa Pressure Meter

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.

Additional Features

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

Testo 521-1 Differential Pressure Measuring Instrument (0.2% of f.v.)

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.

Additional Features

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

Testo 521-3 Differential Pressure Measuring Instrument up to 2.5 hPa

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.

Additional Features

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

Testo 521-2 Differential Pressure Measuring Instrument (0.1% of f.v.)

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.

Additional Features

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

Testo 420 Differential Pressure Measuring Instrument

Use the Testo 420 differential pressure measuring instrument to carry out simple, efficient tests on filters. You can also use the measuring instrument in conjunction with a Pitot tube to measure flow velocity and volume flow really easily in ventilation ducts.

Additional Features

Differential pressure measurement, e.g. to check filters in air conditioning and ventilation systems | Calculate flow velocity and volume flow using a Pitot tube | Handy instrument featuring a large display and user-friendly menu guidance | Save measurement data for analysis and documentation

Vane Probe (Ø16mm , digital) - wired

For measurements in ventilation ducts: use the vane probe (with the compatible measuring instrument) to measure air velocity and volume flow.

Additional Features

Intuitive: parallel determination of air velocity, volume flow and humidity | Precise: accurate measurement results from +0.6 to +50 m/s | Convenient: integrated telescope that can be extended to 0.85 m, with scaling, makes it easy to measure in any cross-section | Intelligent calibration concept

Hot Wire Probe - Digital | Wired Including Temperature + Humidity Sensor

For measurements in ventilation ducts: use the hot wire probe (with the compatible measuring instrument) to measure air velocity, volume flow, air temperature and humidity.

Additional Features

Intuitive: clearly structured measurement menu for volume flow and parallel determination of air velocity, volume flow, air temperature and humidity | Precise: accurate measurement results from 0 to +50 m/s and automatic absolute pressure compensation | Convenient: probe with a practical button on the handle for storing individual readings, convenient measurement in any cross-section with scaled telescope (up to 1 m), optionally extendable to 2.0 m | Intelligent calibration concept

Hot Wired Probe - Digital | Bluetooth Including Temperature + Humidity Sensor

For measurements in ventilation ducts: use the hot wire probe (with the compatible measuring instrument) to measure air velocity, volume flow, air temperature and humidity. The readings are transmitted directly to your measuring instrument via Bluetooth, making your measurements particularly convenient.

Additional Features

Intuitive: clearly structured measurement menu for volume flow and parallel determination of air velocity, volume flow, air temperature and humidity | Precise: accurate measurement results from 0 to +50 m/s and automatic absolute pressure compensation | Convenient: Bluetooth connection between measuring instrument and probe, with a practical button on the handle for storing individual readings, convenient measurement in any cross-section with scaled telescope (up to 1 m), optionally extendable to 2.0 m | Intelligent calibration concept

Vane Probe (Ø16mm Digital) Bluetooth including Temperature Sensor

For measurements in ventilation ducts: use the vane probe (with the compatible measuring instrument) to measure air velocity, volume flow and air temperature. The readings are transmitted directly to your measuring instrument via Bluetooth, making your measurements particularly convenient.

Additional Features

Intuitive: clearly structured measurement menu for volume flow and parallel determination of air velocity, volume flow and air temperature | Precise: accurate measurement results from +0.6 to +50 m/s | Convenient: Bluetooth connection between measuring instrument and probe, with a practical button on the handle for storing individual readings, convenient measurement in any cross-section with scaled telescope (up to 1 m), optionally extendable to 2.0 m | Intelligent calibration concept

Vane Probe (Ø16mm Digital) including Temperature Sensor Wired

For measurements in ventilation ducts: use the vane probe (with the compatible measuring instrument) to measure air velocity, volume flow and air temperature.

Additional Features

Intuitive: clearly structured measurement menu for volume flow and determination of air velocity, volume flow and air temperature | Precise: accurate measurement results from +0.6 to +50 m/s | Convenient: probe with a practical button on the handle for storing individual readings, convenient measurement in any cross-section with scaled telescope (up to 1 m), optionally extendable to 2.0 m | Intelligent calibration concept

Hot Wire Probe (Digital) including Temperature Sensor Wired

For measurements in ventilation ducts: use the hot wire probe (with the compatible measuring instrument) to measure air velocity, volume flow and air temperature.

Additional Features

Intuitive: clearly structured measurement menu for volume flow and parallel determination of air velocity, volume flow and air temperature | Precise: automatic absolute pressure compensation guarantees accurate measurement results | Convenient: integrated telescope that can be extended to 0.85 m, with scaling, makes it easy to measure in any cross-section | Intelligent calibration concept

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