<div style="background-color:#dae4ea; border: 1px solid #648798; padding: 10px;">Product no longer available. Have you checked out its successor? Why not enjoy the benefits that that it has to offer: <a href="…/p/0628-0152">>> To the product</a> Please note that the successor product is only compatible with testo 400 or testo 440.</div>

For measurements in fume cupboards: use the fume cupboard probe (with the compatible measuring instrument) to measure air velocity, volume flow and air temperature.

The hot ball probe (in conjunction with the appropriate measuring instrument) is ideal for determining flow velocity and temperature.

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

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

For determining the degree of turbulence and draught risk at workplaces: use the turbulence probe (with the compatible measuring instrument) to measure air velocity and air temperature.

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&reg; 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!

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!

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&reg; 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!

Ideal kit for IAQ professionals, with a focus on indoor air quality and comfort level. You will receive the testo 400 universal IAQ measuring instrument with intuitive measurement menus, one CO₂ probe (with Bluetooth&reg; handle), one turbulence probe and one globe thermometer Ø 150 mm (both with fixed cable). Use the measuring tripod to ensure standard-compliant positioning of the probes. In combination with the IAQ data logger, which is available to order separately, long-term measurements up to 2 weeks can be recorded, even without the IAQ measuring instrument.

This DAkkS calibration certificate certifies that your measuring instrument or probe is calibrated. Calibration is carried out according to the DAkkS standard.

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DAkkS flow calibration certificate - with 5 measuring points

DAkkS flow calibration certificate - with 5 measuring points

General technical data

General technical data