Ziko, the probe gets uncomfortably warm in my hand. The point of my post was not to ask the question "how do I cool the probe down?", it was to request that a new feature be added to PicoScope6 to turn the probe off and back on again, without closing the software. There could be a button to click to turn the probe off or on. I am a programmer, and I know that it is possible to do that. What I do now is close the software to let the probe cool down, but it is time consuming to launch PicoScope6 again. I would like to be able just to click a button to turn the probe back on, take a reading, then click a button to turn the probe back off, so that it does not heat up. This feature would be a big improvement to the software.