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    Comfort level probe

    0628 0143
  1. Turbulence measurement in accordance with EN 13779
  2. Determination of air velocity and draught risk
  3. Integrated temperature and ambient pressure measurement
  4. Intelligent calibration concept
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    Please note that the successor product is only compatible with testo 400 or testo 440.
    Draught is the most common cause of complaints about indoor climate. Use the comfort probe to determine turbulence. Turbulence corresponds to the extent of fluctuations in air velocity over time. It is needed to calculate the draught risk. The probe enables you to determine air velocity and draught risk in accordance with EN 13779. The probe can also measure temperature and ambient pressure at the same time.

    Intelligent calibration concept

    The probe offers maximum digital measurement reliability. The digital probe allows readings to be processed directly in the probe. This technology eliminates instrument measurement uncertainty. The probe can be sent in for calibration on its own (without the measuring instrument). Calculating the determined calibration data in the probe generates a zero-error display.

    Comfort probe for turbulence measurement.
    Note: You need a plug-in head cable (0430 0100) for this probe.

    General technical data

    Length probe
    12.992 in. / 330 mm
    Probe head diameter
    3.543 in. / 90 mm
    Standards
    EN 13779

    Temperature - NTC

    Measuring range
    32° to 122 °F / 0 to +50 °C
    Accuracy
    ±0.9 °F / ±0.5 °C
    Resolution
    0.1 °F / 0.1 °C

    Absolute Pressure

    Measuring range
    +280 to +440 InH₂O / +700 to +1100 hPa
    Accuracy
    ±1 InH₂O / ±3 hPa
    Resolution
    0.1 InH₂O / 0.1 hPa