Help a newbie to select a system

I'm looking into purchasing a camera video system for my in-laws and leaning toward these 2:

QT578-8G9-1

QC588-8E3-1

both of them are on sale for $350.

Could you please tell me the differences between those 2, or suggest an alternative around that price.

My in-laws has a big warehouse and just want to put the cameras in different parts of the warehouse and be able to see locally or remotely.

Thanks.

You are facing problem for selecting between this two though you can simply check the configuration, while check the configuration possibly you can rectify which one would be the best one for security purpose. As per your information there is no change in price so while comparing configuration you can check which one would be the best.