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These thermometers use organic liquid and inert gas as the medium, and measure the temperature by the expansion and contraction of the dielectric. The shell structure and contact type can be selected according to the site environment.

Little pollution of the filling medium;
Built-in contact ensures free parameters setting;
Micro switch type and contact switch type are optional;
Shell structure is divided into indoor type, drip-proof type, waterproof type and explosion-proof type.