Product review (3 stars): Some improvement possible...
I just received the product and the first feedback is that something when wrong during packaging: I received 2 Outdoor sensors and 1 Indoor instead of the 2 Indoor and 1 Outdoor which were supposed to be included in the bundle I ordered.
One other flaw I noticed during my first five minutes of use is that the output of each sensor varies quite a bit from one sensor to the next especially the humidity (the sensors were located a few inches from each other for 10 minutes or so). The head unit does allow some calibration (i.e. applied offset to the output) but the output shown on the indoor sensors cannot be corrected directly on there. This leads to a discrepancy between what is reported on the sensor itself and the head unit.
I will update my review after a more extended use