I just received my 1920-8G non poe switch with the latest firmware 5.20.99 Release 1108 running normally. However I noticed that the temperature monitor in the Summary-->System information page is constantly 0 celcius degree. I looked into the manual of this switch located at
https://cdn.cnetcontent.com/2a/03/2a037c27-cafe-4338-9158-fe7c1f803021.pdf
and to my surprise on page 20 it has a screenshot of the system information page showing exactly the same I saw: 0 degree temperature.
So I wonder does that mean I received a faulty unit or that feature has not been implemented yet, or perhaps 1920 does not have a built-in temperature sensor at all? Thanks!