Finding an Arduino based EMF meter with LED bar on the internet, raised the question of how to gauge such signals.
So, I created a small unit with a PIC micro controller. I was fun but not sufficient.
Then I found GQ Electronics. They provide a large range of EMF/RF meters and even Geiger counters.
Playing with the ordered EMF390, with logging capabilities, i found the need of good signal viewing software.
EMFGraph is a small C# program for the GQ EMF-390 meter. It visualizes data, downloaded with emf390cli.exe in a graphical form.
The display is highly configurable.
For now you can only download, load and view the data. Routines for printing reports will be added in the near future.