I prefer something that makes noise when the door opens or alerts me when the door opens. I want a chance to be prepared for a clean shot if necessary. I got this recently: http://www.securityallstar.com/en/ar15-mp

I kind of did it all. I got the dog but realized the dog could not tell me if the house was on fire so I got a system (self monitored) with smoke and heat sensors that report to my phone. I then found out that the cops take and average of 3 minutes to arrive if I call them so I got a gun to protect my wife and kids. I…