Airflow

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

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

Make sure you get the testo 420 volume flow hood for larger ceiling outlets and at the same time enjoy multiple maintenance benefits on HVAC systems. Because the flow hood with the removable measuring instrument is not only exceptionally light, it also guarantees accurate volume flow calculations at swirl outlets

• Volume flow hood for larger swirl outlets for measuring volume flow, temperature and relative humidity

• Impressively light with a weight of 2.9 kg

• Precise measurement even at swirl outlets thanks to integrated volume flow straightener

• Fast set-up, convenient operation and protocol creation on site using the App

The hot wire probe (in conjunction with the appropriate measuring instrument) is ideal for determining flow velocity as well as temperature and humidity in ventilation ducts or at ventilation outlets.

• 3 functions in 1 probe: measurement of flow, temperature and humidity

• Probe head diameter: 12 mm – also suitable for measurements in ventilation ducts

• With telescope (can be extended to 745 mm)

• Flow measuring range: 0 to +20 m/s

The hot wire probe (in conjunction with the appropriate measuring instrument) is ideal for determining flow velocity as well as temperature, humidity and pressure in ventilation ducts or at wall or ceiling outlets.

• 4 functions in 1 probe: measurement of flow, temperature, humidity and absolute pressure

• With robust, non-rotatable telescope (can be extended to 1100 mm)

• Intelligent calibration concept

• Flow measuring range: 0 to +20 m/s

The vane/temperature probe (in conjunction with the appropriate measuring instrument) is ideal for determining flow velocity and volume flow at ventilation outlets. For measurements at plate outlets and ventilation grilles, it is particularly recommended to use the vane/temperature probe in conjunction with the testo 480 measuring instrument and the testovent 417 funnel set (both available to order).

• Vane diameter: 100 mm 

• Integrated temperature measurement up to +60 °C

• Intelligent calibration concept

• Flow measuring range: +0.1 to +15 m/s

Replacement hood (610 x 1220 mm) for mounting on the testo 420 volume flow hood for measurements at air inlets and outlets. With integrated flow straightener for high-precision measurement results.   Inner dimensions 585 x 1195 mm. 

Replacement hood (305 x 1220 mm) for mounting on the testo 420 volume flow hood for measurements at air inlets and outlets. With integrated flow straightener for high-precision measurement results. Inner dimensions 280 x 1195 mm. 

Replacement hood (360 x 360 mm) for mounting on the testo 420 volume flow hood for measurements at air inlets and outlets. With integrated flow straightener for high-precision measurement results. Inner dimensions 335 x 335 mm. 
 

Ideal for air outlets in cleanrooms: use the high-precision vane probe (with the compatible measuring instrument) to measure even the lowest air velocities and volume flows as well as the temperature.

• Intuitive: clearly structured measurement menu for volume flow and parallel determination of air velocity, volume flow and air temperature

• Precise: detects the smallest air velocities from as little as 0.1 m/s – ideal for laminar flow measurements in cleanrooms

• Convenient: probe with a practical button on the handle for storing individual readings, convenient measurement at ceiling outlets with optional telescope (up to 1 m)

• Intelligent calibration concept

Ideal for air outlets in cleanrooms: use the high-precision vane probe (with the compatible measuring instrument) to measure even the lowest air velocities and volume flows as well as the temperature. The readings are transmitted directly to your measuring instrument via Bluetooth, making your measurements particularly convenient.

• Intuitive: clearly structured measurement menu for volume flow and parallel determination of air velocity, volume flow and air temperature

• Precise: detects the smallest air velocities from as little as 0.1 m/s – ideal for laminar flow measurements in cleanrooms

• Convenient: Bluetooth connection between measuring instrument and probe, with a practical button on the handle for storing individual readings, convenient measurement at ceiling outlets with optional telescope (up to 1 m)

• Intelligent calibration concept

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.

• 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

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.

• 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

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).

• 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

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).

• 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

More applications, less equipment: if you already own one of our probes with a universal handle, you can easily expand your portfolio of probes with the high-precision 100 mm vane probe head.

• Intuitive: parallel determination of air velocity, volume flow and air temperature

• Precise: detects the smallest air velocities from as little as +0.1 m/s and is therefore ideal for laminar flow measurements in cleanrooms

• Convenient: probe head is easy to attach to the universal Bluetooth or cable handle or to the extendable telescope (all available to order separately)

• Intelligent calibration concept: only send in the probe head for calibration

More applications, less equipment: if you already own one of our probes with a universal handle, you can easily expand your portfolio of probes with the hot wire probe head.

• Intuitive: parallel determination of relative humidity and air temperature in indoor areas, including long-term measurement

• Precise: includes absolute pressure compensation, calculation of wet bulb temperature, dew point and absolute humidity

• Convenient: simply plug the probe head onto the extendable telescope for air velocity probes – and use the adapter to attach them to the universal handle with Bluetooth® or cable (available to order separately)

• Intelligent calibration concept: only send in the probe head for calibration