Tools of the Trade, High-Tech Tools Demystified – EMF Meters
Long ago paranormal investigators replied solely on intuition, cameras, note pad and their education to help determine if a site had paranormal significants. Today, with the help of modern technology and the use of EMF devices(Electro Magnetic Fields ) are used to detect possible unexplained magnetic fields which some attribute to the presence of ghosts and spirits, and at times used to spirit communication.

tri-field meter
How do they Work? The EMF device detects any changes to the atmosphere is association with electrical currents or appliances, in most cases, EMF meters are used key in and pinpoint any change in the surrounding electromagnetic field which can mean that an energy or Spirit may be present. What do they Cost? EMF meters range in price from $30.00 – Over $300.00, I have personally used both the lower end and upper end devices, now of course I highly recommend the Tri-field (which reads on a 3 axis vs a single axis that most EMF devices do) meter by Alpha Labs, for around $124.00, this device has a big brother called the Natural EMF meter which runs on a 9-volt battery or an AC adapter (both included). Model 2 has an input jack for an optional high-sensitivity magnetic coil. This model will run around $200.00. On the lower end devices, they are great for a back up, and if they break it is much easier to replace. I have used my $40.00 EMF device and can say it works! Again I do use both, but for someone just starting out the lesser end is works.
Tools of the Trade, High-Tech Tools Demystified – Non-Contact IR Thermometers
I'm sure after watching an episode of GhostHunters or related shows your wondering about that gun looking thing they use to check for ghosts, it is a valid question and hopfully we can get to the bottom of it for you. When I first started conducting investigations in the mid 90's we would walk an entire room with house

Non-Contact IR Thermometer