Ceramic glow plug with a pressure sensor

When configuring the pressure ceramic glow plug with sensor using a ceramic heater, it is employed less composed structure of the heat transfer amount of the movable member, lowering the bonding strength of the joint between the parts attached to the movable member and the movable member to avoid that, to provide a pressure ceramic glow plug with sensor excellent heating is possible over a long period of time. The total resistance value of the ceramic heater 10, is positioned at the front end side than the tip of the holding barrel 15 the heating main portion P to be the resistance of 75%. Accordingly, the heat propagates toward the rear end from the heating main portion is between propagated to a junction between the retaining outer cylinder and the movable member can be dissipated from the ceramic heater to the engine head and the plug hole. Therefore, it is possible to reduce the influence of heat at the junction of the retaining outer tube and the movable member, it is possible to suppress the reduction of the bonding strength. As a result, it is possible to suppress impairing the function as a pressure sensor in accordance with the fact that the tightness against the combustion gases decreases.