- Intuitive: clearly structured measurement menu for long-term measurements as well as the parallel determination of humidity and air temperature in storage, refrigerated and work rooms and also in ventilation ducts
- Precise: calculation of dew point, wet bulb temperature and absolute humidity
- Convenient: wireless probe, 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 (0560 4401). Humidity/temperature probe (Ø 12 mm) with Bluetooth®* (consisting of humidity/temperature probe head and Bluetooth® handle); 4 x AA batteries and calibration protocol (0636 9731). Basic case for testo 440 and 1 probe.