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0563 4407

testo 440 Air Flow ComboKit 2 with Bluetooth®

testo 440 Air Flow ComboKit 2 with Bluetooth®
Volume flow measurement at outlets with the air velocity and IAQ measuring instrument testo 440
Volumetric flow measurement at  at ventilation grilles with vane probe (Ø 100 mm) and testo 440
Volumetric flow measurement in ventilation ducts with vane probe (Ø 16 mm) and testo 440
The testo 440 Air Flow ComboKit 2 with Bluetooth® is an advanced air velocity measurement kit designed for precise ventilation assessments in ducts and at outlets. It includes the testo 440 multifunction instrument, a 100 mm vane probe with Bluetooth®, a 16 mm vane probe with telescopic extension, and a durable case—ideal for HVAC professionals who need flexibility and accuracy on the job.
  • Comprehensive IAQ Measurement – Measures all IAQ parameters, including flow velocity, temperature, humidity, pressure, CO2, CO, and more.
  • Versatile Dual Probe Setup – Combines a slim 16 mm vane probe for ductwork with a 100 mm vane probe for outlets, ensuring full airflow measurement coverage.
  • User-Friendly Operation – Clearly structured measurement menus make setup, recording, and analysis quick and intuitive for all common HVAC applications.
  • Smart Data Handling – Stores up to 7500 readings and enables report exports via USB as CSV files for easy analysis.
The testo 440 Air Flow ComboKit 2 with Bluetooth® is a complete measurement solution for HVAC professionals who require reliable and versatile tools for air velocity and volume flow measurements. This comprehensive kit contains the testo 440 multifunction measuring instrument, a 100 mm vane probe with Bluetooth® for wireless convenience, and a slim 16 mm vane probe with an integrated 0.85 m telescopic handle—perfect for duct measurements.

The testo 440 allows for intuitive operation with clearly structured menus tailored for volume flow, air velocity, temperature, and humidity readings. The 100 mm vane probe with Bluetooth® enables comfortable, wireless measurement at air outlets, especially ceiling diffusers, when combined with optional accessories like a funnel set. The 16 mm vane probe, with its compact size and telescope, is ideal for detailed duct work, even in confined spaces.

Measurement data can be stored internally and exported via USB as CSV files for analysis or reporting. Additionally, the system is expandable with a wide range of Bluetooth® and cable probes to cover all indoor air quality parameters.

Everything is neatly packed in a robust carrying case, so you’re ready to take accurate airflow measurements on-site without delay.
  • testo 440 air velocity and IAQ measuring instrument, 3 x AA batteries, USB cable and calibration protocol (0560 4401)
  • Vane probe (Ø 100 mm) with Bluetooth® including temperature sensor (consisting of 100 mm vane probe head, handle adapter and Bluetooth® handle); bracket for testovent measurement funnel, 4 x AA batteries and calibration protocol (0635 9431)
  • Vane probe (Ø 16 mm) with fixed cable (cable length 1.7 m), including telescope (can be extended to 0.85 m) and calibration protocol (0635 9532)
  • Combi-case for testo 440 and multiple probes (0516 4401)

Comfort probes

Food probes

Humidity probes

Pressure probes

Surface probes

Temperature probes

Velocity

Convenience and maximum flexibility for duct and outlet measurements

Use our large range of air velocity probes (please order probes that are not included in the kit separately) to carry out simple, convenient measurements even at locations that are difficult to access in ventilation ducts or at air outlets:

You can even carry out easy measurements in particularly large ducts. This is because the extendable telescope on the hot wire and vane probe (Ø 16 mm) with universal handle can be further extended using the telescope extension – enabling you to attain a total length of 2 metres.

Carry out measurements at air/ceiling outlets effortlessly and without using a ladder. Fit your vane probe (Ø 100 mm) with the telescope with 90° angle and, if necessary, with the telescope extension (both can be ordered separately).

Greater freedom thanks to Bluetooth: the air velocity probes with Bluetooth have no inconvenient cable connection to the measuring instrument, and they transmit readings up to a distance of 20 m. Press the button on the probe to operate the measuring instrument – for example, to start and stop a series of measurements (timed mean calculation).

Attach the testo 440 dP air velocity and IAQ measuring instrument to metal surfaces (e.g. ducts) easily using the practical magnets.

Benefit from fast calculation of the volume flow: in the “volume flow” measurement menu of the multifunction measuring instrument, configure the dimensions and geometry of the duct cross-section – the measuring instrument shows you the volume flow straight away.

Long-term monitoring of indoor air quality

Poor indoor air quality due to excessive concentrations of CO2 can cause tiredness, lack of concentration and even illness. With its menu for recording readings, the testo 440 air velocity and IAQ measuring instrument is ideal for monitoring the indoor air quality. Enter the measurement time and the measuring cycle – and, for example, track the change in CO2 concentration or humidity and temperature values over the course of the day. Simply choose between probes with Bluetooth or fixed cable for CO2, CO or humidity (please order probes separately).

Turbulence measurement in accordance with EN ISO 7730 / ASHRAE 55

Determine the degree of turbulence and the draught risk in the workplace: draught restricts the comfort level and is the most common cause of complaints about the indoor climate. The turbulence probe (please order separately) measures air velocity and air temperature, and automatically calculates the draught risk and the degree of turbulence in accordance with EN ISO 7730/ASHRAE 55.
For convenient measurements at varying heights, we recommend using our measuring tripod for comfort level measurement (please order separately). This makes it very easy to position turbulence probes in compliance with the standards.

Range of probes for cleanrooms and laboratories

The testo 440 air velocity & IAQ measuring instrument is also ideal for a wide variety of applications in cleanrooms and laboratories in conjunction with the following probes:
  • High-precision flow measurement in fume cupboards with the fume cupboard probe
  • Thanks to the low start-up speed of 0.1 m/s, the high-precision vane probe (Ø 100 mm) is ideal for laminar flow measurements in cleanrooms. It is available as a variant with Bluetooth or with fixed cable
  • To measure the humidity in cleanrooms, we recommend the high-precision humidity/temperature probe (0636 9771 or 0636 9772). With an accuracy of ±(0.6 %RH + 0.7% of m.v.) (0 to 90 %RH), it also meets the requirements for humidity measurements in this particularly sensitive area
  • Use the high-precision digital Pt100 temperature probes, for example, for high-precision comparative measurements in calibration laboratories, temperature measurements in chemical laboratories or in the cosmetics industry as well as for determining the temperature distribution in refrigerators and conditioning cabinets
  • not available

Accessories

Accessories for measuring instrument

Sensor heads

Transport and Protection

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Testo Ltd
Newman Lane
GU34 2URAlton
HampshireUnited Kingdom
01420 544433

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