List 1 of essential kit that we would take on a ghost hunting

List of essential kit that we would take on a ghost hunting.

EVP stands for Electronic Voice Phenomena. It's a phenomena of recording voices of ghosts and spirits on digital recorders. When you are ready to do the recording for EVPs, set the recorder down on a level surface. Do not set the recorder near windows because sound travels easily through glass. Do not set the recorder near any doors, heaters, vents or air conditioners or power lines as these can all cause unwanted noise.  
EMF (Electromagnetic Field) Detector - EMF Detectors are devices which measure the electromagnetic emissions in the air. While any electrical device can give off an electromagnetic field, most ghost hunters believe a ghost gives off a high reading.