The measurement used to measure temperature is typically done in degrees Celsius (°C), degrees Fahrenheit (°F), or Kelvin (K). Celsius is widely used in most countries and is based on the freezing and boiling points of water. Fahrenheit is more common in the United States, whereas Kelvin is primarily used in scientific contexts. Temperature measuring devices include thermometers, thermocouples, and infrared sensors. Each unit serves different applications depending on the context, such as weather reporting, cooking, or scientific research. Accurate temperature measurement is essential in various fields, including meteorology, medicine, and engineering.