パイロメーター

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Meanings

1

A device for measuring high temperatures, especially in industrial or scientific contexts.

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In the factory, they use a pyrometer to measure the furnace temperature.

温おん度ど計けい
温度計 is a general thermometer, while パイロメーター specifically measures very high temperatures, often without contact.

Borrowed from English 'pyrometer', which itself comes from Greek roots meaning 'fire' and 'measure'.