Description
Testo 440 Air Velocity and IAQ Measuring Instrument

Multi-function measuring instrument
- Clearly structured measurement menus
- Large graphic display with parallel display of 3 readings
- Internal memory for data storage and USB port for data export
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
A wireless space saver: More applications, less equipment
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
Intelligent calibration concept for maximum precision
Advantages of measuring with the Testo 440 air velocity and IAQ measuring instrument
- Large range of connectable probes: Hotwire and vane probe (Ø 0.6″) for measurements in ducts, large vane probes (Ø 4″) for measurements at air/ceiling outlets
- Calculate volume flow quickly: In the measurement menu, simply configure the dimensions and geometry of the duct cross-section and see the volume flow displayed straight away
- Easy to carry out measurements in larger ducts, due to the extendable telescope on the hot wire and vane probes (Ø 0.6″), up to a total length of about 6.5 feet
- Carry out measurements at air/ceiling outlets effortlessly, without using a ladder – fit the vane probe (Ø 4″) with the extendable telescope and 90° angle (both sold separately)
- Use the vane probes in conjunction with the testovent measurement funnels and flow straighteners to test incoming/outgoing air at plate outlets, ventilation grills, and swirl outlets
- Practical Bluetooth interface: Use the air velocity probes to measure without having to deal with any bothersome cables, operate the measuring instrument by pressing the button on the handle of the probe, e.g. to start or stop a timed mean calculation
- Use the practical rear magnets to securely attach the multi-function measuring instrument to metal surfaces (e.g. ventilation ducts)
- The right probe for your requirements: Probes for CO2, CO, and air temperature and humidity are available as wired or Bluetooth variants
- Easy to use: Enter the measurement period and interval for long-term measurement, and track it over the course of the day
- Internal memory for up to 7,500 measurement protocols
- Attain a high level of accuracy, even at low air velocities, with a turbulence probe
- Automatic calculation of draft risk and degree of turbulence in accordance with EN ISO 7730 / ASHRAE 55
- For convenient measurements at varying heights, we recommend using our measuring tripod for comfort level measurement – this makes it easy to position turbulence probes in compliance with testing standards
- Fume hood probe for high precision air velocity measurements
- Thanks to its low startup speed of 0.1 m/s, the available vane probe (Ø 4″) is ideal for laminar flow measurements in cleanrooms, available as a wired or Bluetooth variant
- High precision temperature/humidity probe (0636 9771 or 0636 9772) with an accuracy of ±0.6% RH + 0.7% of m.v. in the 0-90% RH range for measuring the humidity in cleanrooms
Delivery Scope
Environmental Testers / Physical Property/Anemometer / Air Flow Template | |
|---|---|
| Humidity | Yes |
| Temperature | Yes |
| IR Sensor for Tempature | No |
| Thermocouple Sensor for Temperature | Yes |
| Dew Point | No |
| Light Meter | No |
| Water Proof | No |
| Min/Max Display | No |
| Data Hold | Yes |
| Thermal Printer Option | Yes |
| Interchangable Probe Options | No |
Product General Attributes | |
| Product Weight | 0.55 LBS |
| Product Height | 6.1 IN |
| Product Length | 1.3 IN |
| Product Width | 2.6 IN |
| HTS/Schedule B Number | 90268020000 |
| ECCN Number | EAR99 |
| Country of Origin | China |
| Shipping Height | 1.97 IN |
| Shipping Length | 15.75 IN |
| Shipping Width | 5.91 IN |










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