I have a Swann system which has been a huge pain in the ass over the years.
Get no less than a 16 channel system. Install all wiring in pipes. Mix between night vision and PTZ outside. Mount them all very high where they can not be reached.
My system is on a UPS with a solar charger and cellular backup. Same as my alarm system. Cut my phone lines and knock my power out and I will still be covered indefinitely.
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