The Portable Harpenden Stadiometer has been designed to give all the advantages of the wall stadiometer in a portable form. It has the same sensitive counter balanced movement and will give accurate and direct readings, to the nearest millimetre, over a range of 810mm to 2060mm. It is extremely easy to erect, its only component parts being two uprights and a base. Once erected, it is a robust free standing unit. Dismantled, the uprights fit inside the base, which doubles up as a substantial carry case.