The instrument used for measuring relative humidity is called? by Sunday | Jun 13 | Geography WAEC | 0 comments A. hygrometer B. wind vane C. anemometer D. thermometer Correct Answer: Option A – hygrometer Users Also Read These:The mass of water vapour in a given volume of air is…Which of the following instruments may be used to…Which of the following instrument may be used to…Which of the following instruments is used to…An instrument of measuring wind speed is called?