photoelectric pyrometer meaning

• [Electronics]
  An optical pyrometer in which a photocell and appropriate filters act instead of the human eye.
  
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  [Engineering]
  An instrument that measures high temperatures by using a photoelectric arrangement to measure the radiant energy given off by the heated object.

• pyrometer:    Noun: pyrometer&nb ...
• photoelectric:    Adjective: photoel ...
• optical pyrometer:    Noun: optical pyro ...