The thermo-measuring elements are designed for measuring the temperature in the
point of contact between the surface (warmed or cooler) and the thermo-element.
They are a comparatively cheap and the most wide-spread method for temperature
measurement. The thermocouples are produced by accumulating two conductors from
a special measuring alloy in one common head. Each of this elements has a
specific electromotive voltage at a specific temperature. Each thermocouple is
produced and callibrated for measuring of specific temperature ranges depending
on the alloys of wich it is made. The thermo-resistant elements action is based
on the capacity of cpecific alloys, very often Pt100 to change their resistance
when the temperature is changed. Each thermoregulator operates with a specific
type of thermo-elements.