Unverified80% confidenceCautionTime unknown
本地已装大容量NAS或硬盘录像机(NVR)的家庭不建议再买云存储，NAS可实现无限期本地保存且无月费，云存储仅作为异地灾备补充即可
1
Sources
80%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified不建议购买仅支持厂商云存储且不带本地存储的套装用于安防核心场景，云存储月费叠加且断网即失效，重要监控应本地NVR+云双备份83% similarUnverified纯云存储机型不建议在网络不稳定或介意订阅费的场景选购——一旦断网即无本地录像，且多数厂商免费云存储仅几天循环，长期回看需持续付费；优先选支持本地SD卡或NVR的机型80% similarUnverified无本地存储（TF卡/NAS）只有云存储的机型，回看历史录像需持续订阅付费，长期使用成本高，建议选支持本地+云双存储79% similarUnverified云存储越省心但年费累积高且涉及隐私，本地TF卡/NAS一次性投入但断电断网即失效；建议关键监控用云存储保证异地可查，家中常有人可选本地存储省费用79% similarUnverified云存储虽方便但需长期付费且依赖网络，断网即无录像；关键安防场景不应只依赖云存储，务必配本地TF卡或NVR双备份79% similar
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