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 surveying instrument used for measuring…The height at which the atmosphere ceases to exist…The instrument used for measuring the speed of wind…The temperature at which the saturated vapour…The instrument used for measuring wind velocity is called?