| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve handling of a sampling probe under an environment hard to access, and of poor illumination. Ž<P>SOLUTION: The sampling probe (11) for detecting leakage gas provided with a hand operation part (14) equipped with a gas flow-in aperture (22), in the hand operation part (14), an illumination device (25) is provided, for illuminating the region distal to the gas flow-in aperture (22) in the measurement state, and the sampling probe (11) is provided with a limiting value switch (34) which controls the illumination device (25) so as to change the illumination, when the amount of the leakage gas exceeds a concentration limited value. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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