I am looking for a surveillance wireless camera with sd card option.?

I trying to get information on wireless surveillance camera that has an sd card slot. The camera should function in such a way that when the camera looses wireless connectivity then it should write to the SD card and when the connection is restored then stop writing to the SD card.

Not aware of any cameras that even have a memory card slot, let alone the capability you ask for.

Damn good idea though, you should sell it to one of the manufacturers of such devices!