Highest and lowest temperature meter, especially used in Meteorological
Type: Mercury-in-glass temperature
Structure: inner scale type
Using range: -40 centigrade to 50 centigrade, any points in this range.
1. Highest and lowest meteorological temperature is to record the highest temperature and \
lowest temperature of the air in some time.
2. In this meter, right and left sizes, each has a blue indicating pointer When air temperature
rise, the blue indicating pointer rise with the mercury column, when air temperature lower
, the blue indicating pointer will not lower with the temperature. So that could show the highest
and lowest temperature in some time.