Do you want to end up throwing away the camera system you just installed just because you were hit with lightning? Why not protect you equipment like you would your computer. Use the Ditek surge protectors to insure lightning will not destroy your system. To protect the cameras' use the DTK-PVP27B for fixed cameras, the DTK-DP4P for high-speed dome cameras. The head end equipment can be protected with the RM-8 (8 cameras) or RM-16 (16 cameras) along with the proper LVLP protector for data lines. The DTK-8FS should be used for AC protection of the monitors, multiplexer, recorders, etc.