(According to the requirements of the project and the field investigation of our company, we have carefully selected the alarm system equipment in order to better meet the requirements of environmental conditions and practical technology application. This is a computer control system for alarm system. The system is designed and installed with two detectors; Perimeter active infrared radiation detector pair. The specific distribution is as follows: a total of two detectors are installed in front of the elevator door; Active infrared radiation detector pairs are installed around the perimeter.)
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