| 摘要 |
PROBLEM TO BE SOLVED: To easily set monitor items according to operating conditions of a user's side by a kind of an alarm unit. SOLUTION: This alarm unit monitors a call signal and an abnormal signal from an information sensor B and outputs a call notification and an alarm sound. The alarm unit A is provided with an operation setting switch 1 having optical transparency and a selection lamp 2 in its inside according to multiple monitor items to be monitored by the alarm unit 1 and its whole body is covered with a black mask cover 3. This unit is also provided with a monitor item setting switch 4 capable of setting a lighting indication of the selection lamp 2 to valid/invalid.
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