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2. Thermometer - Wikipedia

   en.wikipedia.org/wiki/Thermometer

   A thermometer is a device that measures temperature (the hotness or coldness of an object) or temperature gradient (the rates of change of temperature in space). A thermometer has two important elements: (1) a temperature sensor (e.g. the bulb of a mercury-in-glass thermometer or the pyrometric sensor in an infrared thermometer) in which some ...

3. World's Tallest Thermometer - Wikipedia

   en.wikipedia.org/wiki/World's_tallest_thermometer

   The World's Tallest Thermometer is a landmark in Baker, California, US. It is a steel electric sign that commemorates the weather record of 134 °F (57 °C) recorded in nearby Death Valley on July 10, 1913. The sign weighs 76,812 pounds (34,841 kg; 34.841 t) and is held together by 125 cubic yards (96 m 3) of concrete. It stands 134 feet (41 m ...

4. Mercury-in-glass thermometer - Wikipedia

   en.wikipedia.org/wiki/Mercury-in-glass_thermometer

   A medical mercury-in-glass maximum thermometer showing the temperature of 38.7 °C (101.7 °F). One special kind of mercury-in-glass thermometer, called a maximum thermometer, works by having a constriction in the neck close to the bulb. As the temperature rises, the mercury is pushed up through the constriction by the force of expansion.

5. Thermocouple - Wikipedia

   en.wikipedia.org/wiki/Thermocouple

   A thermocouple, also known as a "thermoelectrical thermometer", is an electrical device consisting of two dissimilar electrical conductors forming an electrical junction.A thermocouple produces a temperature-dependent voltage as a result of the Seebeck effect, and this voltage can be interpreted to measure temperature.

6. Infrared thermometer - Wikipedia

   en.wikipedia.org/wiki/Infrared_thermometer

   An infrared thermometer is a thermometer which infers temperature from a portion of the thermal radiation sometimes called black-body radiation emitted by the object being measured. They are sometimes called laser thermometers as a laser is used to help aim the thermometer, or non-contact thermometers or temperature guns , to describe the ...

7. Resistance thermometer - Wikipedia

   en.wikipedia.org/wiki/Resistance_thermometer

   These elements work with temperatures to 300 °C (572 °F) without further packaging, but can operate up to 600 °C (1,112 °F) when suitably encapsulated in glass or ceramic. Special high-temperature RTD elements can be used up to 900 °C (1,652 °F) with the right encapsulation. Wire-wound PRT. Wire-wound elements