Glass thermometers are delicate hollow Glass tubes containing mercury or a mercury-free substance. These substances are sensitive to temperature changes. When the substance in the thermometer comes in contact with heat in the mouth or other body part, the substance rises up the tube until the maximum temperature is achieved?this normally takes about 3 minutes. The outside of a glass thermometer is marked with lines, or calibrations, and numbers. These markings help us measure exactly the temperature reading displayed
Technical Parameters
Flat clinical thermometer with yellow background and pen shape tube,35-42 in C scale or 94-108 in F scale Packing:12pcs/doz,60dozs/ctn. Dimension:29*26*32cm Gross/net weight:11/9kgs
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