Non-contact thermometer

A hand-held type non-contact thermometer for which a measurement site is a forehead, the non-contact thermometer comprising:

• a casing having a rod shape extending along an axis and including a fore end portion with a built-in infrared sensor and a base end portion on an opposite side of the fore end portion, the axis being a line connecting centroids of a plurality of cross sections orthogonal to a longitudinal direction of the casing and being a straight line;
• and
• a measurement button that is provided in the casing and operates a measurement function of the non-contact thermometer,
• wherein the fore end portion of the casing includes a foremost end portion and a flat sensor surface extending from the foremost end portion toward the base end portion so as to be inclined with respect to the axis,
• the infrared sensor is disposed in the casing so as to face the sensor surface, and
• the measurement button is provided on the same side of the casing as the sensor surface in a side view.