Are they commercial grade, and what type of costs is it? I am thinking about the same for my homeEven with stand-alone systems, they will all attempt to connect back to 'home', wherever that is (usually China). You can easily prevent them from doing so by configuring your network to not allow it. If you want to keep the system completely air-gapped from the world, I'd recommend dedicating a management/viewing PC for convenience.
I've installed a 20 camera system using components made by Dahua. From what I've seen online, the same gear is co-branded to many security companies (like ADT). I'm using all 8MP/4k networked cameras going back to a dedicated 32 channel NVR, and been very impressed with the quality and capabilities.
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Define "commercial grade" I wouldn't say the system is exceedingly ruggedized, but it has held up very well. For example, the cameras are not in enclosures. This may buck traditional practice where you'd buy the Sony CCD based cameras, bolt a lens to it, and shove the whole thing in a big ass enclosure to weather protect it. These are significantly smaller, and are IP67 rated so they're already protected against weather incursion.Are they commercial grade, and what type of costs is it? I am thinking about the same for my home
Piano wire snares and trip lines.Can anyone recommend a good wired home surveillance system that doesn't store anything online or connect to smart phones?
Make that a few miles: 20dBi gain 2.4GHz YagiIt could probably be hacked locally but they'd have to be on my property to do it since the Wi-Fi coverage doesn't extend to the property boundaries.
Make that a few miles: 20dBi gain 2.4GHz Yagi