I think OP is thinking of a remote alarm, not so much loud onsite. OP, maybe something like this? http://www.indiegogo.com/projects/ismartalarm-iphone-controll

I think OP is thinking of a remote alarm, not so much loud onsite. OP, maybe something like this? http://www.indiegogo.com/projects/ismartalarm-iphone-controlled-home-security-system-intelligent-and-affordable http://www.indiegogo.com/projects/ismartalarm-iphone-control... edit: Or this? https://itunes.apple.com/us/app/alarm.com/id315010649?mt=8 https://itunes.apple.com/us/app/alarm.com/id315010649?mt=8