The testo 6615 trace humidity probe is equipped with a high-precision, long-term stable humidity sensor from Testo* and delivers precise measurement results.
With the aid of the integrated trace humidity self-adjustment (cyclical), even the smallest deviations are reliably corrected and extremely accurate measurement results are achieved in complicated trace humidity measurements, to - 60 °C_td.
Thanks to the plug-in system and digital interface, commissioning and probe replacement are exceptionally quick and easy.

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