Measuring Temperature in Paranormal Investigations
This is a summary of the Society for Psychical Research (SPR)'s guide for measuring temperature in paranormal investigations. Why Measure? Sudden, unexplained temperature shifts are commonly reported in hauntings. Measurements help verify whether changes are natural or anomalous. Types of Thermometers Contact Thermometers : measure surfaces, liquids, air; usually more accurate but slower to respond. Non-Contact Thermometers : measure object surfaces remotely (not air); good for spotting hot/cold spots. Thermal Imaging Cameras : create thermographs (color maps) of heat differences; can also pinpoint specific spots. Best Practices Start baseline readings immediately and continue throughout the investigation. Record temps at regular intervals (every 10–15 mins, or more often if activity is reported). Allow sensors time to stabilize before logging a measurement. Place thermometers close to reported anomalies , not on floors or near heaters/ven...