The alarming rates of crimes have made it necessary to install home security systems. They induce a sense of security in the mind of the home owner and keep his loved ones at home safe. Various kinds of home security systems are available and to choose the most suitable, one should keep some options in mind.

Types of Security Systems
Burglar Alarm
It is the basic alarm system which includes an alarm and various sensors. These sensors can be strategically fitted in the doors and window of your house. The alarm beeps in case of an intrusion.
Video Door Phone (VDP)
They are installed on the main door of the house to get a visual confirmation of who the visitor is. The image of the visitor will be displayed on LCD which comes in the VDP package itself. It also has speaker microphone set with in which one can talk to visitor.
Audio Door Phone (ADP)
In this the person sitting in the house can only have audio confirmation of the visitor by talking to them.
Close circuit television (CCTV)
This type of security system comprises of sensors, a fire alarm and CCTV surveillance. The fire alarm function can be activated or deactivated at any moment as per the requirements.
Biometric Systems: This type of security system is installed on the main door. The door would open only after confirming the fingerprint input.

Tips on buying the right security system for home:
Go for the Brand: The local security systems are unreliable and unfit for long term use. Hence it is advisable to opt for a branded security system.
Go for mobile compatibility: The latest systems generally have a mobile interface through which one can then control from anywhere besides even the videos can be accessed through this mobile feature. It has a live surveillance and is almost like being there at home.
For added security, choose CMS: The central monitoring service is a security feature provided by reputed companies only. In CMS, the security officials of the company whose security system is installed, monitor the premises of the subscriber all the time.
Look at the Maintenance Contract: Home security systems would need regular maintenance, so this is a must. This also includes checking for warranty, response time after recording a query and so on.
Wireless ones are better: With the wireless ones, you would not need to disturb the décor of the home. Plus, they are safer.
Ask for Free Demo: Never buy a home security system before you have seen it working in your home. Most of the reputed companies provide a free demo. You should buy it only when you are sure that it is the best for you.
Look for Extras: Some companies also provide you free fire monitoring and carbon monoxide. Watch out if you can avail these along with the home security system. Lastly, keep in mind that you must discuss with your family members what they expect out of the home security system.