The Testo 420 capture hood represents a significant advancement in airflow measurement technology, combining precision with exceptional usability. This CEC-compliant instrument features an innovative flow straightener that ensures accurate measurements even at turbulent outlets and swirl diffusers.

With its lightweight design under 6.4 lbs and ergonomic handles with tiltable display, the Testo 420 makes comprehensive airflow testing more accessible and reliable.

The integration of Bluetooth connectivity and measureQuick compatibility transforms this capture hood into a powerful diagnostic tool for modern HVAC professionals, enabling detailed analysis and documentation of system performance.