Paranormal investigators use a number of different tools and tactics to capture evidence of ghosts. Here are just a few of the tools that they regularly turn to:
1. Thermal imaging camera. These cameras are designed to capture heat signatures rather than visual images. The image that you see on the screen is a reflection of the temperature of the surrounding environment. Warm areas are colored red, orange, or yellow while cool areas are colored green, blue, or purple. Oftentimes, when a ghost is near there will be changes in the surrounding temperature. This can show up on the thermal imaging camera as changes in color, flashes of light, or even the silhouette of a person when no one is really there.
2. EMF detector. One theory is that when ghosts are nearby, there are disruptions in the electromagnetic field. Using an electromagnetic field (EMF) detector can help monitor and track these changes.
3. Digital camera. Snapping photos with a digital camera can sometimes lead to compelling ghost evidence. This could range from orbs of light all the way up to full body apparitions. The only downside to using a digital camera to hunt ghosts is that oftentimes insects or dust can appear in the photos, making it difficult to discern whether the evidence is actually paranormal or whether it is one of these small particles captured on film.
There are quite a few other tools that paranormal investigators use to find ghosts. All of these tools are based on different theories about how ghosts interact with the environment. While there currently is no way to prove for sure that ghosts exist, as more and more new technology is developed, eventually there may be a way to capture solid proof. Until then, there will always be skeptics who don’t believe in the existence of ghosts.