"Our internet-connected devices use a proprietary radio system, which links the alarms together," says Nick Rutter, co-founder and chief executive of FireAngel. The connected alarms can send push notifications to users' phones via their home internet router.
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module: web/app/xxx，更多细节参见夫子
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clock_t end = clock();
Publication date: 28 February 2026，详情可参考一键获取谷歌浏览器下载