The instrument used for measuring atmospheric pressure is known as? by Sunday | Jun 15 | Geography WAEC | 0 comments A. rain guage B. thermometer C. barometer D. sundial Correct Answer: Option C – barometer Users Also Read These:The instrument used in the measurement of…If the pressure of the vapour on top of an enclosed…In the diagram given if the atmospheric pressure is…The surveying instrument used for measuring…The survey instrument used for measuring horizontal…