olfactometer

/OW0 L F AE1 K T AA1 M AH0 T ER0/
noun
  1. 1

    A device used to measure the acuity of a person's sense of smell.

  2. 2

    A device used to measure odour intensity, and concentrations of volatile organic compounds, by means of their smell.

Source: https://en.wiktionary.org/wiki/olfactometer