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…The instrument used for measuring the speed of wind…The surveying instrument used for measuring…Which of the following instruments is used for…The instrument used for measuring atmospheric pressure is?