| 摘要 |
A light monitoring system (10) senses light levels in an area (20) adjacent to an automated transaction machine (12). The system includes a light source (16, 18). Light levels are sensed by remote units (22, 24, 26). Upon sensing that light levels have fallen below a set threshold, a remote unit transmits a wireless signal to a control unit (30). The control unit (30) communicates with a remote monitoring unit (32) to provide an indication of the sensed condition.
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