| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a gas sensor capable of switching a state between a normal monitoring mode and an inspection mode easily without cost increase, thereby reducing labor and time required for inspection work.SOLUTION: A gas sensor 10 comprises a control circuit part 12 for controlling so as to perform detection by a normal monitoring mode for detecting a detection gas and detection by an inspection mode for detecting an inspection gas. The control circuit part 12 transits the mode from the normal monitoring mode to the inspection mode by predetermined operation of an alarm stop switch 14, and after passing of constant time, transits to the normal monitoring mode again.</p> |
