FACT: EMF meters detect electromagnetic fields.
THEORY: Theory #1: When a spirit/ghost manifests, it gives off an electromagnetic field, which may be picked up by an EMF meter.
Theory #2: When a spirit/ghost manifests, it needs energy to do so. In an area where there is a high EMF field, the spirit/ghost may draw in that high EMF and manifest.
HOW TO USE: The first thing you do is walk through the investigation site and search for anything within the surrounding the area that could cause an electrical disturbance and throw off the meter. Upon arriving to the investigation site, you must get a general base reading of your location. While walking around the site, you must hold the meter steadily because too much movement could throw off the reading. If you get an unusual reading, study the area and try to figure out what could be causing it. When the investigation is over, be sure to document your average reading and any unusual readings in the field report.
RANGE: The unit of measurement for this EMF meter is milligauss or mg. The range on the meter is 0mg to 199.9mg. The range from the meter to the active field is 0 to 8 feet, depending on how strong the electromagnetic field is.
READINGS: Normal readings are from 0mg to 1.5mg. Paranormal readings are from 1.5mg to 8mg. Paranormal activity can occur lower than 1.5mg if the base is low. For example, if you are getting a base reading of .1mg to .3mg, and then the meter jumps to 1.2mg, then this may be paranormal activity.