You will have to discuss with your client, leveraging the example that you outlined above, as to how they measure success and then translate into a KPI, just like the KPI above was deduced for room temperature.
The KPI's you are asking for can easily number in the thousands if not more at the level of detail you have outlined in your example above.
The KPI's will be use case dependent that then get layered on with the industry of operations dimension and keep scaling up as different dimensions get added up.
I know I did not give you a direct answer but hopefully the pointers above will help you in resolving your use case.
Industry specific research on your client use case might also surface more content in this matter.
Thank you.