Unverified80% confidenceTradeoffTime unknown
RF射频开关（433/868MHz）穿墙能力强、覆盖远（可达30米以上），但多数无状态反馈且难接入主流智能家居App，适合纯本地控制场景
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80%
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Long-term
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Unverified选购前确认无线频段：国内合规民用报警设备多用433MHz或2.4GHz，433MHz穿墙能力强、覆盖广（空旷可达百米），2.4GHz带宽高但穿墙衰减快，别墅多楼层优先选433MHz主机+子设备79% similarUnverified无线433MHz信号穿墙能力有限，复式楼或大户型跨楼层使用时可能出现信号盲区，需提前测试实际覆盖范围75% similarUnverified室内玩耍选2.4GHz频段遥控，支持多台同场无干扰，且穿墙能力强；老式40MHz频段易与邻居设备串频导致失控75% similarUnverified无线报警主机的传感器无线频段优先选用433MHz或Sub-1GHz，穿墙能力和抗干扰性明显优于2.4GHz，别墅或复式户型尤其应避免仅支持2.4GHz的机型74% similarUnverified无线主机选择433MHz或Sub-1GHz频段的穿墙能力优于2.4GHz，别墅/复式结构建议单主机可接≥32路无线探头并支持中继扩展73% similar
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