For busy homeowners, it’s hard to know what’s going on at home when you aren’t there – that is, it’s hard if you don’t yet own smart video cameras as part of your security system. If you do have smart cameras as part of your home security system, all you need to do is take out your phone, open your home security app, and get an instant view of the activity inside or outside your home. And, if there’s a security event going on – say, someone waiting at the door – you can receive a smartphone notification that it’s happening.