The Testo 417 is a compact vane anemometer designed for measuring air inlets and outlets of air conditioning and ventilation systems. It comes with an integrated 100 mm vane that ensures quick and precise results. The instrument automatically calculates time and point average values as well as volume flow, making it efficient for adjusting balanced residential ventilation systems. The Testo Smart App enhances the user experience by assisting with configuration, display, storage, and documentation of measured values. It can also turn your smartphone into a second display for added convenience.

The Testo 417 is available in two practical kits:

  1. Testo 417 Kit 1:

    • Includes two measuring funnels for plate outlets and ventilation grilles.
    • These funnels can be easily attached to the vane, covering a wide range of outlet sizes and formats.
  2. Testo 417 Kit 2:

    • Includes the two measuring funnels from Kit 1.
    • Additionally, it includes a volume flow straightener that ensures precise results, even at swirl diffusers.

For further information about the Testo 417 anemometer, its Smart App connectivity, the two kits, or any other ventilation requirements, you can contact the company through the following channels:

  • Call: 028 2827 5150 (From outside the UK, dial 0044 2827 5150) (Lines are open from 8 am to 5 pm, Mon-Thu, and 8 am to 3.30 pm on Fridays)

  • Email:

If you have any questions or need assistance with ventilation-related matters, don't hesitate to get in touch with them using the provided contact details.