• A clinical thermometer is used for measuring the human body temperature.
  • Our thermometer consists of mercury contained in a bulb at the bottom of a graduated sealed glass capillary tube.
  • The capillary tube has calibrated markings in either centigrade or in Fahrenheit.
  • Mercury expands with a rise in temperature causing a thin thread of mercury to rise in the tube. There is a constriction in the capillary tube above the bulb, preventing movement of the column of mercury downward, once it has reached its maximum temperature, so that it continues to indicate the maximum temperature until the mercury is shaken back down into the bulb.
  • Temperature Range= +94°F to +108°F with 98.6°F considered as the normal body temperature; and +35°C to +43°C with 36.9°C considered as normal.
  • The thermometer is supplied with a protective plastic case.


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