| 摘要 |
Monitoring device characterised in that it includes an analysis device 8 capable of receiving the information signals ai when the information processing device 5 is in quiescent position and of transmitting in response to the alarm device 7 control signals c which are indicators of the correct or incorrect operation of the detector or detectors 1, 2, 3. The invention applies to devices for monitoring anti-break-in protection installations. <IMAGE>
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