Testo 400 Air Flow Kit and Hot Wire Probe - 0563 0400 71


0563 0400 71

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As an expert in the field of air conditioning and ventilation, you will find the Testo 400 universal IAQ measuring instrument ideal. Measure, analyze and document all IAQ and comfort level parameters (flow, temperature, humidity, pressure, illuminance, radiant heat, turbulence, CO₂ and CO) using just one instrument – simply, conveniently and in compliance with the standards.

The IAQ measuring instrument with a built-in measurement assistant provides optimum support for carrying out air flow and comfort level measurements in accordance with the standards, as well as for adjusting and inspecting air conditioning and ventilation systems.

High-quality measuring technology, intuitive measurement assistants, versatile documentation options and a comprehensive selection of IAQ probes make the Testo 400 the perfect partner for your day-to-day work.

Testo 400 Air Flow Set with Hot Wire Probe is an ideal kit for IAQ professionals, with a focus on air flow measurement. You will receive the Testo 400 universal IAQ measuring instrument with intuitive measurement menus, one hot wire probe head (including temperature and humidity sensor), one vane probe head (Ø 100 mm) and one high-precision humidity/temperature probe head – all three can be attached to the Bluetooth® handle supplied. For measurements at ceiling outlets, simply combine the 100 mm vane probe with the telescope (can be extended up to 1.0 m) and the 90° angle.


  • Testo 400 universal IAQ instrument measures all IAQ-related parameters (flow, temperature, humidity, pressure, illuminance, radiant heat, turbulence, CO₂ and CO) with a wide range of probes for all IAQ measurements
  • Determination of the volume flow at outlets by measuring the reference pressure and entering the manufacturer-specific K-factor
  • Smart, intuitive measurement programs, complete your measurement with full documentation on site at the customer’s premises or carry out further analysis using the testo DataControl measurement data management and analysis software
  • Standard-compliant determination of the volume flow in ducts using grid measurements as per EN ISO 12599 and ASHRAE 111


In this Testo 400 Air Flow Kit, you will receive the following:

  • Testo 400 universal IAQ instrument (0560 0400)
      • Silicone hoses
      • Mains unit with USB cable
      • Calibration protocol
      • Instruction manual
  • Hot wire probe with Bluetooth® (0635 1571) including:
      • Temperature and humidity sensor (consisting of hot wire probe head, handle adapter and Bluetooth® handle)
      • 4 x AA batteries
      • Telescope (can be extended up to 1.0 m)
      • Calibration protocol 
  • High-precision humidity/temperature probe head including calibration protocol (0636 9770)
    Please do not use the probe head in condensing atmospheres. For continuous application in high-humidity ranges
            > 80% RH at ≤ 30 °C for > 12 h
            > 60% RH at > 30 °C for > 12 h
    Please get in touch with Testo Service or contact us.
  • Vane probe head (Ø 100 mm) (0635 9430) including:
      • Temperature sensor
      • Bracket for testovent measurement funnel
      • Calibration protocol
  • 90° angle for connecting vane probes (Ø 100 mm) (0554 0991)
  • Transport case for air flow measurements (0516 1400)


  • Measuring Range:
      • Differential pressure (integrated): -100 to +200 hPa
      • Absolute pressure (integrated): 700 to +1100 hPa
      • Temperature NTC (with appropriate probe): -40 to +150 °C
      • Temperature TC type K (with appropriate probe): -200 to +1370 °C
  • Storage Temperature: -20 to + 60°C
  • Operating Temperature: -5 to +45 °C
  • Power Supply: Rechargeable li-ion battery (5550 mAh)
  • Battery Life: Approx. 10 hrs continuous operation
  • Display: 5.0 inch HD touch display, 1280 x 720 px resolution
  • Camera:
      • Main camera: 8.0 MP
      • Front camera: 5.0 MP
  • Memory: 2 GB (corresponds to approx. 1,000,000 readings)
  • Probe connections: 4x Bluetooth®, 2x TUC*, 2x TC type K
  • Dimensions: 210 x 95 x 39 mm


Please view the Brochure to view technical data for the Testo 400 Air Flow Set with Hot Wire Probe - 0563 0400 71


Buy with 100% confidence knowing your purchase is backed by the full Manufacturer's Warranty. Please register your product with provided warranty card.


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