Meet the InBody PUSH Stadiometer: a height measuring tool that uses an ultrasound sensor to get the job done in an accurate fashion. Users will be able to see all growth milestones according to the CDC growth chart on their iOS or Android device.
This device supports measurements from 1′ 8″ to 6′ 7″. The app supports up to 20 individuals. Sets you back under $150 at this time.