Use the testo 440 air velocity and IAQ measuring instrument in combination with high quality probes to measure and store all air velocity and IAQ parameters. Up to 3 probes can be connected simultaneously – a Bluetooth probe, a wired probe, and a temperature probe with a type K thermocouple connector (probes sold separately). Automatic probe detection and clearly structured measurement menus guarantee simple operation and will make your day-to-day work easier.
Measure in no time with the testo 440 multifunction measuring instrument
Carry out your measurements quickly and easily. This multifunction instrument automatically detects each connected probe, which means you won't need to manually reset measurement parameters when changing probes. Clearly structured measurement menus for measuring the volume flow in ducts and at outlets, funnel measurement, measuring the degree of turbulence, determining heating/cooling output, mold detection, and long-term measurement provide you with the optimal support for quick and efficient work.
A wireless space saver: More applications, less equipment
Endlessly versatile – the universal probe handle can be connected to all probe heads, so you can measure everything you need, while saving money and space.
The Bluetooth probe handle makes it more convenient to carry out your measurements, and guarantees less cable clutter in your case. It makes it possible to carry out measurements without any bothersome cable connections, and it transfers readings up to a distance of 65 feet. If using a wireless connection is not possible, use the cable probe handle as a practical alternative.
Practical measurement data management
The testo 440 stores up to 7,500 measurement protocols, which can be read via USB port and further processed as a CSV file on your computer (e.g. with Excel). With the testo Bluetooth / IrDA printer (sold separately), you have the ability to produce a printed report of measurement data directly on site.
Intelligent calibration concept for maximum precision
You can rely on the accuracy of your measurement results with our digital probes, because the testo 440 makes measurement uncertainty a thing of the past. You only need to send the probes in for calibration, meaning the multifunction instrument can remain in continuous use with a variety of interchangeable probes.