两个双元组合，双输出型。与光学系的组合，可取消小动物等的输出信号，对于外部闪光的误报，有较高的可靠性。
With two independent dual element signals,outputs by small animal can be cancelled.
用途 : 安防用侵入者报警器（规避小动物误报）
APPLICATION: Security Alarm (Without false alarm by small animals)
标准型号 Recommended model: SQG413-612
