pyroscope

noun (n)

1. a pyrometer that uses the color of the light emitted by a hot object (noun.artifact)

   Sinonim: optical pyrometer

   Sumber: wordnet30

2. An instrument for measuring the intensity of heat radiating from a fire, or the cooling influence of bodies. It is a differential thermometer, having one bulb coated with gold or silver leaf. (noun)

   Sumber: webster1913