Ouija board

One of our main pieces of equipment we use is a board, with either a planchette or a glass as a pointer for the letters or numbers, to spell out words to questions asked.

Used on numerous paranormal tv shows, the spirit box is a modified radio that sweeps through am and fm radio bands in the hope of picking up words spoken by spirits 

These are used to measure the electromagnetic fields in a room, believe to be emitted by spirits.  When using you do need to be aware of other devices in the room so that there is no confusion about where the readings are coming from.

A sudden change in temperature is thought to indicate a possible presence of a spirit so we use these to keep a check on ambient room temperatures. You should expect at least a 5-6 degree change to indicate possible spirit activity.

This device uses an aerial to emit a magnetic field around itself. When something crosses that field, ie a spirit, it beeps and lights up to make people aware. 

We use a digital voice recorder to record EVP (electronic voice phenomena) . During investigations there have been recordings made of mysterious sounds and voices, otherwise  unheard during the vigils and we use these to listen back over the events, hoping to hear unexplained sounds.