Definitely do some research first as you are doing. And understand any charges for false alarms before signing the contract. ADT seems to be popular around here. The business I used to work at used SecurityLink, then ADT bought them out. They would call first when the alarm went off before doing a dispatch. They used to wake me up in the middle of the night as I was the first contact listed because I lived the closest. There was an allowance for a certain number of false alarms in the contract before an additional charge would apply. That might be something else to look into. I am not real up to date on the home versions though.