noun (n)

• a datum about some physical state that is presented to a user by a meter or similar instrument(noun.cognition)

  Example:
  He could not believe the meter reading.
  

  Synonym:
  indication, reading
  

  source: wordnet30
• the act of measuring with meters or similar instruments(noun.act)

  Example:
  He has a job meter reading for the gas company.
  

  Synonym:
  reading
  

  source: wordnet30