• Intuitive: clearly structured measurement menus for volume flow, K-factor, degree of turbulence, cooling/heating output, mold detection, and long-term measurement, such as CO₂
• Wireless: Bluetooth® probes for extra convenience when measuring and less cable clutter in the measuring case (please order probes separately)
• Clear and reliable: large graphic display with parallel display of 3 readings as well as internal data storage and USB port for data export
• Includes a differential pressure sensor: for Pitot tube measurement and monitoring filters

Measure in just a few clicks with the testo 440 dP multifunction measuring instrument

Take your measurements quickly and easily: the air velocity testo 440 dp and the IAQ gauge automatically detect each connected probe. This means that there is no need to manually reset parameters when changing transducers. Well-structured measurement menus of testo 440 dp for in-duct/outlet volume flow measurement, funnel measurement, determination of volumetric flow through differential pressure and K-factor, turbulence measurement, power output cooling/heating, mold detection, and long-term detection provide you the ultimate support in your daily work.

Wireless and space-saving: more applications, less equipment

Extremely versatile: One universal handle can be connected to all probes, allowing you to master more applications using fewer devices and saving space.

The Bluetooth handle makes it easier to take measurements and ensures less messy cables in the box. It allows measurements to be taken without any inconvenient cable connections and it transmits readings up to a distance of 20 m. Or as a practical alternative, use the cable handle to connect the testo probes. This is an advantage if Bluetooth signals are not allowed.

Practical measurement data management

The multifunction measuring instrument records maximum. 7500, which can be read via the USB port and further processed as a CSV file on your computer (e.g. with Excel). With the testo BLUETOOTH/IRDA printer (to be ordered separately), you have the option to print measurement data reports directly on-site.

Long-term monitoring of indoor air quality

• Probes to suit your needs: CO2, CO, air temperature and humidity probes are available in variants with Bluetooth or with fixed cable
• Ease of use: enter duration and duration Measure in the menu for long-term measurement and follow it throughout the day
• Internal memory for up to 7500 measurement protocols

Turbulence measurement in accordance with EN ISO 7730 / ASHRAE 55

• Achieve high accuracy, even at low air velocities, with a turbulence detector
• Automatically calculate draft risk and turbulence levels according to EN ISO 7730/ASHRAE 55
• For convenient measurements at different heights, we recommend using a tripod to measure for comfortable level measurement. This makes it easy to locate disturbance probes that conform to standards.

Range of probes for cleanrooms and laboratories

• Fume hood probe for high-accuracy air velocity measurement in fume hoods
• Thanks to its low start-up speed of 0.1 m/s, high-precision (Ø 100 mm) vane probes are ideal for measuring laminar flow in cleanrooms. Available as a variant with Bluetooth or with a fixed cable
• High precision temperature/humidity probe (0636 9771 or 0636 9772) with ±(0.6% RH + 0.7% m) accuracy .v.) in the range of 0 to 90% RH for measuring humidity in clean rooms

Delivery Scope

Air velocity and testo 440 dP IAQ meter with built-in differential pressure sensor, connecting hose, 3 AA batteries, USB cable, and calibration protocol.

more information

For the testo 440 dp datasheet, click on the datasheet tab. For the testo 440 dp manual PDF click on the manual tab. To buy testo 440 dp air velocity and similar Testo products, please contact us.