testo 6617 - Process humidity probe with self-monitoring

Bestelnr.  0555 6617

  • Process probe with cable for monitoring process temperatures and humidity in aggressive environments

  • Measurement ranges: Temperature from -40 °C to +180 °C, humidity from 0 %RH to 100 %RH / Measurement accuracy of ± (1.2 + 0.007 * reading) %RH

  • Built-in self-monitoring and early warning function with cover electrode

  • Easy installation and quick probe change thanks to digital interface and plug-in system

The testo 6617 temperature and humidity probe is designed for measurements in environments with aggressive media. With the built-in self-monitoring function, you can prevent faulty measurements or measurement interruptions – because it detects signs of corrosion at an early stage, thus the probe can be replaced in good time.



The testo 6617 humidity probe is equipped with a high-precision, long-term stable humidity sensor from Testo, delivers precise measurement results and ensures optimum system availability.

Thanks to the built-in self-monitoring and early warning function with cover electrode, the probe is ideal for use in aggressive media. The first signs of corrosion are detected at an early stage – so you can replace the probe in good time before damage occurs.

The plug-in system and the digital interface ensure easy commissioning and quick probe replacement.


1 x testo 6617 humidity and temperature probe with fixed cable (selectable lengths 1, 2, 5 or 10 m), including factory certificate.

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