• A measuring instrument for all climate-related parameters
• Intuitive - clearly structured measurement menu for volume flow and parallel determination of air velocity, humidity and temperature in ventilation ducts or at air outlets
• Precise - combine the vane probe with Bluetooth with the telescope for ceiling outlets or the funnel set for plate outlets (please order separately) as required
• Extendible with a wide range of probes
• Wireless measurement with Bluetooth probes
• USB interface for exporting measurement reports as CSV files

The testo 440 air velocity and IAQ meter combines all the benefits of a compact handheld device with intuitive measurement menus and a comprehensive selection of air velocity & IAQ probes. This means you have all measuring tasks on air conditioning and ventilation systems reliably under control.

You can connect the testo 440 to a large selection of digital probes, the testo Smart Probes, or even numerous Testo temperature probes, allowing for numerous configurations to meet your needs. The clearly structured menus for measuring volume flow in ducts and at outlets, cooling/heating load, K-factor, turbulence, mold indication and even a data logging mode are stored on the instrument for additional convenience. These menus enable you to accomplish the relevant measuring task more quickly, more efficiently and more reliably than ever before. Reports can also be exported as excel files via the USB interface or printed out directly on site.

The testo 440 air velocity & IAQ meter is available in two versions. The standard testo 440 and the testo 440 dP model version, which includes an integrated differential pressure sensor. This makes measurements at filters as well as Pitot tube and K-factor measurements possible.