I have already installed a wifi dog fenceto set a boundary for my pet, but I am still not that sure whether this device is enough to ensure the safety of my pooch. I am planning to set-up a CCTV in the backyard to check the activities of my dog, and for home security as well. Now, I am wondering which type of CCTV should I purchase as this will be the first time that I am adding it at home. I am hoping that you guys can help me with this problem of mine. Thanks in advance.