Combined sensor

A combined sensor, comprising:

• a pressure detector that detects a pressure of a detection medium flowing through a flow path;
• a temperature detector that detects a temperature of the detection medium using a thermistor;
• and
• a housing portion that houses the temperature detector closer to the flow path than the pressure detector and includes a through hole part at an inner peripheral side of the housing portion, one end of the through hole part being an opening end that is open to the flow path, wherein
• the temperature detector includes a first lead and a second lead connected to the thermistor, and a thermistor case in which a part of the first lead and a part of the second lead are embedded,
• the thermistor case includes an extension part that passes through the through hole part of the housing portion, and a ring part that includes a flow hole part having one end continuous with the extension part and another end facing the pressure detector, the detection medium flowing through the flow hole part,
• the thermistor is supported by the extension part to be arranged outside the opening end of the housing portion, and
• the extension part is provided by being separated into a portion where the first lead is embedded and a portion where the second lead is embedded, along an extending direction of the extension part, and includes a space portion communicating with the flow hole part of the ring part and with the outside.