| CPC G08B 13/189 (2013.01) [G01D 5/34 (2013.01); G08B 21/0269 (2013.01); G08B 21/0286 (2013.01)] | 21 Claims |

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12. A monitoring system, the monitoring system comprising;
a monitoring device housing, wherein the monitoring device housing encases a monitoring circuit;
an attachment element having a first end and a second end, wherein the first end is configured to attach to a first side of the monitoring device housing and the second end is configured to attach to a second side of the monitoring device housing;
a light sensor deployed in relation to the first side of the monitoring device housing and configured to detect light in a light path in the monitoring device housing and to provide an indication of detected light to the monitoring device circuit; and
a securing clip configured to hold the first end of the first attachment element to the first side of the monitoring device housing and to block the light path.
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