For the price this is obviously not the top of the thermometer. But it does the job ... and he does it well. The probe is long and thin enough to fit just about anywhere. I've used it to test the temperature inside my pc and to optimize the airflow in the case. It has proven convenient ... frankly for the price it deserves its 5 stars.
However the housing for the batteries is not super snugly on the one I received ... to put the 2 button batteries in place is not great ... but it happens. We'll see when I'll change the batteries ... that's a priori in time.