| 摘要 |
PURPOSE: A temperature difference calculation and indication method of a temperature difference clock is provided to show the difference of indoor temperature and outdoor temperature. CONSTITUTION: A temperature difference clock main body(100) indicates a fixed number in which one decimal point is eliminated in display screen when changing an electric signal of an indoor thermistor and an outdoor thermistor into a temperature value. The temperature difference clock main body shows the difference of indoor temperature and outdoor temperature. The temperature value is a same value as the value taking the outdoor temperature from the indoor temperature.
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