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Solar thermometer is a kind of thermometer which uses solar energy as power to display numerical value. Although it is the same as the ordinary electronic thermometer that directly displays the numerical value, it is different from that, there is usually a small solar chip beside the electronic display screen, which is the core component of the solar thermometer。 Aadvantages of solar energy as power：
1. Generally, the sun shines everywhere
2. Harmless. It will not pollute the environment and is one of the cleanest energy sources.
3 . Long time, solar energy is inexhaustible.