Basically it is the same as mercury pressure thermometer. Instead of mercury, nonpoisonous organic liquid or liquid gas is used as a thermo- sensitive liquid.
A logarithmic curve is created, and a scale is gradually expanded at a high-ordertemperatureratherthanatalow-ordertemperature.
Since we use our unique two-fluid system, a intermediate conduit is hardly affected by outside air temperature. Temperature indication is very accurate.
