Expansion Thermometer Series

An expansion thermometer, also known as a direct-acting thermometer, is a temperature measurement device based on the principle of thermal expansion. There are primarily three types: liquid expansion, solid expansion, and pressure-type thermometers. The most common type of expansion thermometer is the glass tube thermometer, which utilizes the expansion of a liquid. Gas expansion thermometers, on the other hand, rely on the change in pressure of a working medium enclosed within a sealed volume to determine the temperature.

If you have any other requirements for temperature measurement, please feel free to contact us directly. SJ Gauge will provide you with the most suitable solution.