The utility model purpose provides that a kind of cost is relatively low, sensed speed is moderate, flat surface easy to use contact scalability temperature inductor in what. Its technological means are as follows: including shell,Circuit board,Display screens,Control switch,Power supply device and inductive head； Its characteristic is in what: inductive head is the locating piece being embedded in what shell one end by one； One is clamped with locating piece,Lateral surface protrudes what surface of shell,And periphery is not in contact with shell,Contact portion is pressed in flat metal； One sets the induction chip at what metal pressure contact portion medial surface； And be electrically connected with induction chip,Coiling attaches the two call wires composition at what metal pressure contact portion medial surface； The periphery of the locating piece,Several locating rods equipped with protrusion what locating piece surface,And the periphery of metal pressure contact portion,Then be provided with several pieces correspond to the aforementioned locating rods of what,And be clamped with it,The positioning sheet body for contacting metal pressure contact portion inner surface with locating piece.本新型目的在於提供一種成本較低、感測速度適中、使用方便的平表面接觸量測型溫度感應器。其技術手段為：包括殼體、電路板、顯示螢幕、控制開關、電源供應裝置及感應頭；其特徵在於：感應頭是由一嵌設於殼體一端內的定位塊；一與定位塊卡接，外側面凸出於殼體表面，且周緣不與殼體相接觸，呈平板狀的金屬壓觸部；一設於金屬壓觸部內側面處的感應晶片；以及與感應晶片電連接，盤繞貼附於金屬壓觸部內側面處的兩傳導線組成；所述定位塊的周緣，設有凸出於定位塊表面的數個定位桿，而該金屬壓觸部的周緣，則是設有數片對應於前述定位桿、並與其卡接、使金屬壓觸部內表面不與定位塊接觸的定位片體。
