testo 440 – Air velocity and IAQ measuring instrument

Product Descriptions
Precise, reliable measurement of all air velocity and IAQ parameters with just one measuring instrument – the testo 440. This multifunction measuring instrument is intuitive and easy to use, thanks to its clearly structured measurement menus. Adjusting air conditioning and ventilation systems, monitoring air quality, and carrying out comfort level measurements are all possible without the hassle of juggling different devices and tools. Enjoy the versatility of using your choice of high quality digital probes with just one measuring instrument.

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.

Advantages of measuring with the testo 440 air velocity and IAQ measuring instrument
Precise and reliable in ducts and at air outlets
• Large range of connectable probes: Hot wire 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 multifunction measuring instrument to metal surfaces (e.g. ventilation ducts)

  Technical Data
  Temperature – NTC
  Measuring range   -40 to +150 °C
  Accuracy   ±0.4 °C (-40 to -25.1 °C)
  ±0.3 °C (-25 to +74.9 °C)
  ±0.4 °C (+75 to +99.9 °C)
  ±0.5 % of mv (Remaining Range)
  Resolution   0.1 °C
  Temperature – Type K TC
  Measuring range   -200 to +1370 °C
  Accuracy   ±(0.3 °C + 0.3 % of mv)
  Resolution   0.1 °C
  General technical data
  Weight   250 g
  Dimensions   154 x 65 x 32 mm
  Operating temperature   -20 to +50 °C
  Product colour   black/orange
  Connectable probes   1 x digital probe with cable or 1 x Temperature NTC TUC,
  1 x digital Bluetooth probe or testo Smart Probe, 1 x Temperature TC Type K
  Battery type   3 x AA 1.5 V
  Battery life   12 h (typically vane measurement)
  Interface   Bluetooth®; USB
  Storage temperature   -20 to +50 °C


Related Searches:

pH, Turbidity PHotoFlex series

pH and Turbidity. Turbidity measurement range from 0.01-1100 NTU/FNU providing drinking water accuracy

HR-AZ/HR-A Series Standard-Level Analytical Balances

4 Digits. Compact foot print: 198 mm × 294 mm (smaller than an A4 sheet of paper)

GR Series Semi-Micro Analytical Balances

4, 5 Digits. 0.01 mg readability up to 42 g (GR-202) Small footprint of 249 mm by 330 mm to save space

HR-i Series Semi-Micro Analytical Balances

4, 5 Digits. Semi-micro, 0.01 mg readability up to 51 g (HR-202i), GLP/GMP/GCP/ISO compliant output

Chat with us on LINE

เราใช้คุกกี้เพื่อพัฒนาประสิทธิภาพ และประสบการณ์ที่ดีในการใช้เว็บไซต์ของคุณ คุณสามารถศึกษารายละเอียดได้ที่ นโยบายความเป็นส่วนตัว และสามารถจัดการความเป็นส่วนตัวเองได้ของคุณได้เองโดยคลิกที่ ตั้งค่า

Privacy Preferences

คุณสามารถเลือกการตั้งค่าคุกกี้โดยเปิด/ปิด คุกกี้ในแต่ละประเภทได้ตามความต้องการ ยกเว้น คุกกี้ที่จำเป็น

Allow All
Manage Consent Preferences
  • คุกกี้ที่จำเป็น
    Always Active

    ประเภทของคุกกี้มีความจำเป็นสำหรับการทำงานของเว็บไซต์ เพื่อให้คุณสามารถใช้ได้อย่างเป็นปกติ และเข้าชมเว็บไซต์ คุณไม่สามารถปิดการทำงานของคุกกี้นี้ในระบบเว็บไซต์ของเราได้

  • คุกกี้เพื่อการวิเคราะห์

    คุกกี้ประเภทนี้จะทำการเก็บข้อมูลการใช้งานเว็บไซต์ของคุณ เพื่อเป็นประโยชน์ในการวัดผล ปรับปรุง และพัฒนาประสบการณ์ที่ดีในการใช้งานเว็บไซต์ ถ้าหากท่านไม่ยินยอมให้เราใช้คุกกี้นี้ เราจะไม่สามารถวัดผล ปรังปรุงและพัฒนาเว็บไซต์ได้