Intuitive climate measurement
Welcome to a new era: the testo 440 combines a compact hand-held measuring instrument with intuitive measurement menus and a comprehensive selection of air velocity & IAQ probes. Use it to keep all your air conditioning and ventilation measurements in one device.
Intuitive measurement menus
Clearly structured menus for volume flow, K factor, degree of turbulence, heating/cooling output, mold detection and long-term measurement are programmed into the instrument.
All the testo 440 probes are also available as wireless Bluetooth versions. This makes for less cable clutter.
Measurement configuration and display of values at a glance.
The testo 440 saves you money:
the meter does not need to be calibrated, it measures all air velocity & IAQ parameters and the probes can be easily adapted for different measurements.
Intuitive menus – clearly structured for volume flow, K factor, and pitot tube measurements
Convenient measurement – extendable probes with Bluetooth
With a differential pressure sensor: the testo 440 dP for Pitot tube and filter measurements
Intuitive menus: turbulence measurement in accordance with ISO EN 7730/ASHRAE 55
Integrated long-term measurement: monitor specified locations at adjustable measuring intervals
A comprehensive selection of probes: turbulence, CO2, temperature, humidity, CO, lux
Intuitive menus – clearly structured for volume flow measurement
Special applications – high-precision probes with an unrivaled level of accuracy
Versatility – Bluetooth or cable, the right probes for any measuring location
Menus for measuring volume flow, K factor, and degree of turbulence in accordance with EN ISO 7730 / ASHRAE 55, heating/cooling output, mold detection, and long-term measurement are programmed into the instrument, and guarantee reliable measurement results.
Measurements are easily configured via the large display; readings and results are available at a glance.
The menus programmed in the instrument efficiently guide you through volume flow measurements in ducts and at outlets, and with K factor and pitot tube measurements.
Which probe for which application? Download the probe comparison and learn about the testo 440 portfolio of probes.