The first function test turned out that the external temperature sensor is not working. The banana plugs were too short and were not in contact. The shortage could be solved quickly and easily. The dealer called back and offered to immediately send me a more suitable temperature sensor.
The biggest shortcoming of the device is, in my opinion, that the USB port does not work on computers with Windows 8 and Windows 8.1. In the description above, next to the picture, a different impression is given. "" USB adapter for connection to a PC running Windows, "Only those who will scroll all the way down, is looking for something to note:" PC software Windows XP, Vista , Win7, 32/64-bit ". Even the though says not necessarily from that the software would be 8 and 8.1 will not run on Windows (actually it does so, just not the USB interface for data transmission) is, but probably so be meant.