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.

* Long-term stability: ≤ ±1% RH / year