EMF detectors/testers are designed to measure EMF from electrical devices, these can range from microwave ovens, computers, televisions, and electrical wiring. These are used in paranormal research, because it is believed that when a spirit tries to manifest itself it pulls Electromagnetic energy from the environment and this is detectable as an Electromagnetic Field.
Many investigators believe a reading in the 2.0 to 7.0 milligauss range is paranormal activity. This is just a belief and I recommend looking for:
- Any elevated EMF reading with no explainable cause.
- A fluctuating reading that has no reason for the change.
- I recommend the follow procedure at an investigation site.
The key point to using EMF readings as evidence is to eliminate any man-made reasons for the reading, and to pinpoint the spot where the reading is emanating from. Check and recheck the spot over time watching for fluctuations. This then helps make it hard evidence.
Scanning
To use an EMF Detector start by moving the EMF left to right over the area you are scanning, then moving to an up to down pattern. Your movement should be gentle even pattern. Sudden jerks or moving to fast can cause a false reading.
Usage
- Turn off all electrical appliances in the area to be scanned, or as many as you can. Some appliances may not be able to be turned off
- Scan the area, away from any electrical devices you should see a reading in the 0.1 to 0.5 milligauss range. This is natural background EMF readings you will find just about anywhere.
- If you have a reading above 0.5 milligauss, then you need to determine if it caused by a man made field.
- Map out any unexplained EMF readings in the area. Check these routinely over the course of the investigation.
Here are things that can explain EMF readings that are not obvious.
Explainable Causes
- Electrical appliance behind the wall. Heaters & microwaves generate a field over a large area that can extend through walls.
- Unshielded wiring in the wall. This can usually be determined by the readings will be found in a straight line, the same path where the wiring is laid.
- Ungrounded plumbing or gas lines. Any copper or iron pipe running through walls that is not properly grounded can generate an EMF field. This one can fluctuate.
- Telephone wires, cable lines, door bell wires and others, are often not shielded, and can generate EMF’s. Look for evidences of these kinds of lines.