Temperature measurement device for food ingredient

A temperature measurement device for food, comprising:

• a housing, the housing comprising a front end that is capable of be inserted into the food and a rear end opposite to the front end, the housing forming a mounting chamber;
• the housing comprising a metal section and an insulating section, the insulating section is located behind the metal section;
• a control circuit board, the control circuit board is defined in the mounting chamber;
• the control circuit board comprising a main portion and an extension portion extending rearward from the main portion, the main portion is defined in the mounting chamber formed by the metal section, the main portion comprising a control circuit, the control circuit comprising an antenna signal processing unit;
• the extension portion comprising at least one layer or multiple layers of stacked and fixed substrate layers, the extension portion is provided with an antenna, the antenna is electrically connected to the antenna signal processing unit through a conductive wire;
• the main portion of the control circuit board near the extension portion is also provided with a ground feed point, the ground feed point being electrically connected to the antenna signal processing unit, the ground feed point is in abutting connection with the metal section through a metal contact.