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2.5#楼施工升降机计载重显示失灵， 6人荷载显示0.04吨，天窗电气联锁失效，设备上限位失效。（违反《房屋市政工程生产安全重大事故隐患判定标准（2024版）》第八条第四款，属于重大事故隐患。）
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"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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