virtualbox.org

Are there any hardware monitorprogs that works in Linux and VB.Like cpu temp ,cpu usage and so on.

It's a VM, how do you plan to access your physical hardware from a place that doesn't know it exists?

Yes,I´ve been thinking about that,but the built in HWM in linux is working so It would be possible.

What HWM in Linux? What values do you get? I don't have any sensors or other physical hardware information from my VMs.

Yes it the "system Övervakaren" in swedish maybe it called "sysemmonitor" i n english?
Where you can se running processes and cpu usage and memory usage.
It´s under administration.

System monitor does work but that uses a very basic subset and does not include sensors. Excluding anything that requires a sensor you can find all kinds of different basic monitors, but that is outside the scope of this forum. You need to be asking the forum of the OS you are using.