How Investigators Use EMF Meters, Voice Recorders and Night-Vision Cameras
The three core tools of a paranormal investigation — what each one measures, what it can't tell you, and how to use them responsibly.
By Ronnie Tsunami · September 21, 2026 · 7 min read
EMF meters: measure, don't interpret
An EMF meter detects electromagnetic fields. Wiring, appliances, breaker panels and cell phones all produce them. Take baseline readings in every room before the investigation begins, and map known sources. A spike only matters if you can rule out every ordinary cause.
Digital voice recorders: the EVP workhorse
- Announce the date, time, location and everyone present at the start.
- Ask questions slowly and leave 10–15 seconds of silence after each.
- 'Tag' every known noise out loud — a cough, a car, a stomach growl.
- Keep the recorder still; handling noise ruins audio.
Night-vision and IR cameras: fixed and documented
Mount cameras on tripods pointed at areas with reported activity, and note their positions. Infrared light makes dust, insects and reflections look dramatic — so know what 'normal' looks like on your camera before calling anything unusual.
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In Pursuit of the Beyond
Our free beginner's guide to your first investigation — equipment, checklists, evidence review and safety.