兩個雙元組合，雙輸出型。與光學系的組合，可取消小動物等的輸出信號，對于外部閃光的誤報，有較高的可靠性。
With two independent dual element signals,outputs by small animal can be cancelled.
用途 : 安防用侵入者報警器（規(guī)避小動物誤報）
APPLICATION: Security Alarm (Without false alarm by small animals)
標準型號 Recommended model: SQG413-612
