The choice of the scale of thermometer dial

When selecting the temperature meter , usually consider normal conditions, the temperature to be measured shall be 30% - 60% of the scale of the temperature dial. When the temperature exceeds this range, the meter may break. Therefore, special attention should be paid to the transit, passing through the equator or cold zone or storing in the cold zone!

For example, if the actual measured liquid temperature is 40C～60C,the dial scale should be 0~120C.