Parametric scanner

From Memory Alpha, the free Star Trek reference

A parametric scanner is a type of hand-held engineering device used for aligning phase coils.

In 2152, Trip Tucker used one to scan Jonathan Archer's physical dimensions into the computer during his attempt to redesign Enterprise's captain's chair. (ENT: "Singularity")

Trip aiming a parametric scanner.

Archer being scanned by a parametric scanner.

Resulting scans.