Air velocity and IAQ measuring instrument Testo 440

The testo 440 air velocity and IAQ measuring instrument is a powerful tool for measuring and storing all key air parameters. It supports up to three probes simultaneously, including Bluetooth® and wired options, ensuring flexible operation. Automatic probe detection and intuitive measurement menus simplify use, allowing quick assessments of volume flow, turbulence, heating/cooling output, and long-term air quality monitoring. Its wireless capability reduces clutter, while a spacious internal memory stores up to 7500 measurement protocols for easy data management. The intelligent calibration concept ensures highly accurate results, and practical features such as magnetic mounting and extendable probes enhance usability in various environments. Whether for HVAC inspections, cleanroom validation, or comfort level measurements, the testo 440 is a reliable solution for professionals.