If you want more than just the detection of break-ins, including fires, floods, and freezes, choose the Fox Guard Complete. It has a smoke detector, a flood and freeze detector, as well as mini door/window sensors, motion sensors, a keyfob, and a panic button in case of emergencies.
1 Lynx Touch 5210 All-In-One Keypad, Siren, Backup Battery, and Alarm System
2 Motion Sensors
1 Panic Button
4 Mini Door/Window Sensors
1 Smoke Detector
1 Flood/Freeze Detector
1 WiFi Communicator (subscription required)