Well, when it costs 35 Fr. you can't expect a top professional instrument. And this thing isn't one. But it bravely does its job, if you manage to keep it away fron the sun and any other source of heat, while keeping it in contact with the elements. Which is not as easy as it sounds. I'm still trying to find an ideal place for this in my hiking clothes or backpack.
Basically, it delivers an idea of the temp. variations during your hike (which is what I needed). It does better on cloudy days. As expected, the GPX files produced will grow noticably. But you get a nice graph in BaseCamp.
On the positive side, connecting the Sensor with my Garmin GPS is really easy and works immediately. The two instruments now reconnect in an instant each time I turn on my GPS.…more