| 摘要 |
An infrared thermometer has an elongate housing extending along an axis with an actuator at one housing end, the actuator being actuated by engagement along the axis. The housing further includes an opening at one end and a temperature sensor operatively associated with the opening. The temperature sensor can be advanced from a retracted position within the housing to an extended position operatively associated with the opening for sensing the temperature of an object. As the sensor moves between the retracted and the extended position, the sensor changes from a dormant state to a sensing state.
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