discharge-tube leak indicator

discharge-tube leak indicator

[′dis‚chärj ‚tüb ′lēk ‚in·də‚kād·ər]
(engineering)
A device which detects the presence of a tracer gas by using a glass tube attached to a high-voltage source; the presence of leaked gas is indicated by the color of the electric discharge.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.