This unit has a Vesa compatible wall mounting facility.
Can this be used on any DVR?
This camera will work with a DVR that supports 2mp TVI video signal.
Are they in grey?
These are only available in white.
How do I get the zoom in function to work on a genisys nvr?
Do I need a separate psu
The zoom function on these cameras is activated via the PTZ controls on the NVR.
How do you connect an IP camera to this DVR?
Firstly you will need to login to the unit , go to System -> Digital -> Channel type, then select the configuaration that supporst IP. An IP camera is then connected to this unit via it's RJ45 (lan port) using a network switch or POE switch.