One item found in the paranormal investigator’s tool bag is the digital thermometer. There are two common types used today: an ambient thermometer and non-contact IR thermometer with laser targeting.
Why does a paranormal investigator use a thermometer? The theory is a cold spot is formed because of a paranormal anomaly drawing energy from the heat in the air. It also is suggested that an entity is cold in nature.
An ambient thermometer is useful in a situation of a cold spot since it displays the temperature in the vicinity. When using an ambient thermometer do not hold it close to the probe while this may cause a faulty reading. Prior to the investigation take multiple readings and put the base temperature readings in the logbook. Individual rooms may have different readings which is normal.
When encountering a cold spot the investigator can immediately take a temperature reading in that area then move to different spots in the room to compare readings. Once man-made and natural causes such as AC vents or an open window are ruled out the occurrence is logged in the investigator’s logbook.
The non-contact IR thermometer with laser targeting is useful when needing to get a reading from an object. An investigator may feel cold on one side of his body and have goose bumps only on that arm. Using the laser thermometer you can take readings of each arm and note the difference in the readings.
When using an object with the intent is for it to be touched or manipulated take an initial reading of the object. For instance some investigators use a flashlight in a yes and no question session. If you have a response immediately take a reading and compare it with your initial reading and record any difference in temperature.
So which should the paranormal investigator use, the ambient thermometer or the laser thermometer? The answer is both belong in your paranormal tool bag. Most investigators carry an EMF meter however each investigator should use different items such as these thermometers to complement each other.