Overview
With the Testo 440 CO₂ kit with Bluetooth®, all IAQ-related
parameters for evaluating indoor air 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.