DO NOT USE!, There are no words that I can use to describe how unbelievably useless ADT are. The salesperson will visit your property and bore you to death for 2 hours and sell you products that you don’t actually need. I had products missing from my initial install and ADT never even had the courtesy to return my calls when I phoned to complain (3 times!!). Such a shame because i had great expectations of ADT and it all started so well but the level of customer service is diabolical! Summary - It’s over priced and there are much better systems out there for better value, please do not waste your time or money!