Most properties are fitted with a security system to provide you with added peace of mind. Should you opt to use this you should read the instructions carefully and be sure to re-set the system with your own password.
For a security system to provide the degree of reliability you require it is recommended that you take out a service contract which will ensure that the system is maintained and should you experience a malfunction, an engineer is at hand to provide the level of support necessary. Panic buttons in the main bedroom and hallway are useful additions but should be used in conjunction with a security chain to the main door of the property.