The testovent 417 Funnel Set is designed for professionals seeking a simple and efficient solution to measure volume flow at both ventilation grilles and plate outlets. It includes two specially designed funnels: one for ventilation grilles and another for plate outlets, enabling fast and accurate measurements, even in challenging flow conditions like swirl outlets.

Compatible with the testo 417 vane anemometer or Ø 100 mm vane probes for the testo 435 and testo 480, this set allows you to quickly determine air flow and calculate volume flow without the hassle of the traditional loop method.

The funnel set can measure outlets up to 300 x 300 mm and features a flow direction detection system and a Hold function to lock in stable readings. All parts are neatly stored in a compact case, ensuring the set is portable and easy to transport to various job sites.