The main reason why people install home security systems is to make our home a safer place to live in, ADT has been protecting my home for a long time and I am really impressed with their product and services. It is a bit expensive as compared to other home alarms but their package is very attractive:
The Contents for the package I opted for includes:
• Two Entry Sensors.
• Motion Sensor.
• Hold Up and Panic Button
• Temperature Monitoring.
• Owners manual.
• ADT Sign Stickers.
• AC Adaptor for the base.
The components were easy to install and uses a combination of hardwired and wireless sensors with additional keypads. They provide monitored smoke and carbon monoxide detectors as well, but they were not a part of the package and was totally out of my budget as well 
The Two Entry sensors and the motion sensors are working really well and I am planning to get few more motion sensors for my doors and windows.