Non-invasive sensors are devices that collect data without physically penetrating or altering the subject being measured. They are commonly used in various fields, including medicine, environmental monitoring, and industrial applications. Examples include ultrasound sensors that visualize internal organs and infrared sensors that measure temperature from a distance. These sensors offer several advantages, such as increased safety and comfort for patients in medical settings. They can also provide real-time data, allowing for timely decision-making. By minimizing the need for invasive procedures, non-invasive sensors contribute to more efficient and less stressful experiences for users.