Overview
With the Testo 440 100 mm vane kit with Bluetooth®, all IAQ-related parameters at air vents can be measured and documented wirelessly. The Testo 440 air velocity & IAQ measuring instrument recognizes probes automatically, and its structured measurement menus simplify the adjustment of air conditioning and ventilation systems. Up to 3 probes can be connected simultaneously to the measuring instrument: a Bluetooth® probe, a wired probe and a temperature probe with Type K thermocouple connector.