Unverified78% confidenceCautionTime unknown
金属防盗门/门框会严重屏蔽2.4G WiFi信号，门铃装在门外时若路由器在客厅深处易频繁掉线；应确认门铃支持双频WiFi或配套中继/网关，选购前先测门口信号强度
1
Sources
78%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified门口Wi-Fi信号弱（金属防盗门、混凝土墙阻隔）时不要直接买纯Wi-Fi门铃，会频繁离线掉线；应选带独立网关/中继的方案或支持2.4G穿墙更强的型号，安装前先用手机在门口测速85% similarUnverified金属门窗会屏蔽和干扰无线信号，安装在铁门/铝合金窗上的无线传感器可能通信不稳定，此类场景建议缩短与网关距离或加装中继设备85% similarUnverified依赖WiFi推送的智能猫眼不适合门口WiFi信号弱的场景，防盗门金属门板会严重衰减2.4GHz信号，安装前需确认门口实测信号强度84% similarUnverified冰箱内金属和封闭结构会严重屏蔽无线信号，蓝牙(BLE)款穿透力弱易断连，需APP实时提醒的用户应选WiFi直连或带外置网关/中继的型号，避免关门后失联83% similarUnverified推拉窗/铝合金金属门框会削弱WiFi和Zigbee信号，安装点距网关过远（隔2堵墙以上）易掉线，金属环境优先选433MHz或信号穿透性更强的产品并靠近网关83% similar
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