Anti-frosting industrial control instrument

The utility model relates to an industrial control instrument capable of preventing frosting, and belongs to the technical field of industrial instruments. A protection mechanism is sleeved outside the annular shell, an anti-frosting mechanism is arranged inside the annular shell, and one end of a heat conduction wire of the anti-frosting mechanism is connected with the exterior of the instrument in an inserted mode. The anti-frosting instrument has the advantages that the structure is novel, the anti-frosting mechanism is arranged, the electric heating net can emit heat and generate heat when working, the heat is transmitted out through the heat conduction wire, the heat of the heat conduction wire is transmitted into the instrument, the temperature in the instrument can rise, frosting caused by too low temperature in low-temperature weather is avoided, and observation of people cannot be affected. And in addition, the protection effect on the shell can be improved through a silica gel sleeve and a silica ge