digital thermometer

A digital thermometer is an instrument used to measure temperature. In the early 21st century, digital thermometers began to replace traditional mercury thermometers due to their increased accuracy and the absence of toxic mercury.1

Digital thermometers utilize a thermistor, which is a type of resistor whose electrical resistance changes with temperature. This change in resistance is then converted into a digital display, providing a precise temperature reading. Other types of thermometers include those using mercury, alcohol, platinum, thermocouples, and bimetallic strips, each operating on different principles to measure temperature. Temperature itself is a measure of the average kinetic energy of particles within a system.12