human
What are the differences between the various types of thermometers?
assistant
The main difference between the various types of thermometers is their accuracy. Infrared thermometers measure temperature by detecting the infrared energy emitted from the object being measured, while mercury thermometers use a liquid that changes color as it expands or contracts with temperature. Other types of thermometers include electronic thermometers and digital thermometers. Electronic thermometers are generally more accurate than other types but they can be more expensive. Digital thermometers offer improved accuracy and portability over traditional thermometers.