The Warning Magnetic Field 7521 sign is ideal to advise people of the conditions that are prevalent within a certain area. This should help to ensure that untrained people remain out of the area and this will keep them safer.
Prominently display the sign in an area that will be provide a maximum viewing potential and therefore sufficient warning to people. Use more than one sign for larger areas.
Fixing requires anything as simple as sticky pads, 'No-nails' type adhesive or double-sided tape.