How does a thermal imaging system differ from a thermometer?
A thermal imaging system is a non-contact, non-invasive, passive imaging system that is measuring the thermal energy that is emitted, or given off, by the human body. A thermometer is a contact device that is typically applied to the skin or other body cavity to achieve a core temperature measurement. There is also the NCIT or Non-Contact Infrared Thermometers not to be confused with the thermal imaging systems. Thermal imagers through proprietary software, can provide an estimated core temperature, as well as a surface temperature that is highly sensitive and accurate.