jufre77

can anyone advice me, situation: there is already exsisting the analog cctv in mesanine area with dvr and camera now they want to add another camera that will have place in the office at the 3rd floor.. also is there a way that another dvr to view the old system. or view all the camera from the office at the 3rd floor. what is the best camera for these kind of situation (for the 3rd floor). which is the best the wireless cam or a wired cam for this kind of situation. i have attached the floor plan.