A "measurer" is a person or device that is used to determine the size, length, or amount of something. It helps in accurately assessing and quantifying different aspects of objects or quantities.
To measure your waist, wrap a cloth tape measurer around your abdomen towards the top of your hip bone. (wallerwellness.com)
Lawyers, accountants and other professional advisers are at their best when they assume the role of highly - skilled, expertly informed, responsible and ethical managers and measurers of risk. (slaw.ca)
We can imagine him asking: How did my adventurous, bold, clear - sighted loners, ones who bade goodbye to God, turn into such simpering complainers and feeble measurers? (firstthings.com)