Lie Detector Device

This page is the CodyCross answer for the clue below from Beach Bliss, Group 2054, Puzzle 3 (Surf Competition).

Question is: Lie Detector Device

and the answer is: POLYGRAPH

Word Meaning:

POLYGRAPH — A device which measures and records several physiological variables such as blood pressure, heart rate, respiration and skin conductivity while a series of questions is being posed to a subject, in an attempt to detect deception.

Definitions from Wiktionary.