Pentagon draws scrutiny with Anthropic threats, Defense Production Act
Optical-based smoke alarms use light instead. They are slightly better at detecting the large smoke particles created by slow, smouldering fires. When such particles enter a chamber in the device, they scatter light from a small light source, which is then picked up by a photoelectric sensor.
，推荐阅读旺商聊官方下载获取更多信息
Is it something like this?
3月12-15日，上海新国际博览中心，AWE2026见！