Thermometers are equipment designed to measure and display?temperature in either Celsius (C°), Kelvin (K°), or Fahrenheit (F°). The characteristics are type, temperature display, temperature range, display type, input type, and probe type. The types of thermometers are anemometer, handheld (Gun), or pocket, with?temperature ranges?from -418°F (-250°C) to 3212°F (1767°C).