Cables looks the same, but really same cable?
Cables is a trick for security solution installers. Im-proper use of cables may waste your expensive terminating equipment liked DVR, low-light high resolution cameras, and so on. While cables look…
How installation of Pet-immune PIR motion detector reduce false alarm?
Mostly users find there are quite amount of false alarm from PIR motion detectors even those they have been claimed pet immunity. PIR is not so miraculous that can distinguish…