starcraft04

Hi all, I need to set up a security system outside the school with 10 cameras. I need to have at least 720p and good quality during day and night as well. I will need to keep the video feed for at least a month. I need to get a software to go over the different video and also to be able to have a look at the live feed when needed. Android and IOS is a nice to have but not 100% needed. I will need wired access as I don't really want wireless for this. Could you please recommend a camera type for that purpose? Also could you please tell me how many storage I would need and if the synology diskstation could work fine with the system I want to put in place? Many thanks, John.