I know this topic is old, but it is an interesting subject so I'll post the answer anyway.
You don't need a NVR to use the VTH1660CH with your cameras.
The VTH1660CH has onboard software and you can add the cameras and other hardware through the touchscreen panel :D
Hi Guys,
Where I live there are many pigeons and those birds shit where they sit :(
On many buildings you see spikes mounted on the roof and balcony so that birds can't land on it.
Today I was cleaning the house and saw shit on my balcony fence.
So I was wondering if you've taken steps to...