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High-precision humidity/temperature probe (Ø 12 mm)

0636 9743
  • High-precision humidity measurement: accuracy of up to ±1% RH
  • Intelligent calibration concept
  • Temperature measuring range: -20 to +70 °C
  • Product no longer available. Have you checked out its successor?
    Why not enjoy the benefits that it has to offer:
    >> To the product (fixed cable)
    >> To the product (wireless, with Bluetooth)
    Please note that the successor products are only compatible with testo 400 or testo 440.
    Use the high-precision humidity and temperature probe (with an appropriate measuring instrument) for the following applications:
    • Measuring the relative humidity and temperature in storage, refrigerated and work areas or in air conditioning/ventilation ducts
    • Assessing thermal comfort
    • Ensuring the process climate in clean rooms
    • Checking the correct ambient conditions in production facilities to comply with quality standards

    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. 

    High-precision humidity/temperature probe (Ø 12 mm).
    Note: You need a plug-in head cable (0430 0100) for this probe.


    Temperature - NTC

    Measuring range
    -20 to +70 °C
    ±0.5 °C (Remaining Range)
    ±0.2 °C (+15 to +30 °C)
    0.1 °C

    Humidity - Capacitive

    Measuring range
    0 to 100 %RH
    ±(1.4 %RH + 0.7 % of mv) (90 to 100 %RH)
    long-term stability: ±1 %RH / year
    ±0.03 %RH/K (k=1)
    *The sensor accuracy corresponds to the system accuracy.
    ±(1.0 %RH + 0.7 % of mv) (0 to 90 %RH)
    0.1 %RH

    General technical data

    Diameter probe shaft
    12 mm