- Intuitive: clearly structured measurement menu for volume flow and parallel determination of air velocity, volume flow and air temperature in ventilation ducts
- Convenient: integrated telescope that can be extended to 0.85 m, with scaling, makes it easy to carry out measurements
- Reliable: absolute pressure compensation, internal data storage and USB port for data export
- As multifaceted as your challenges themselves: the air velocity and IAQ measuring instrument can be expanded with a large portfolio of digital probes
testo 440 air velocity and IAQ measuring instrument, 3 x AA batteries, USB cable and calibration protocol. Hot wire probe (Ø 9 mm) with fixed cable (length 1.7 m) including temperature sensor, with telescope (can be extended to 0.85 m) and calibration protocol (0635 1032). Basic case for testo 440 and 1 probe.