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2 Scope of the Study2. 3 Research Objectives2. 4 Markets Structure3 Market Research Methodology3. 1 Research Process3. 2 Secondary Research3. 3 Primary Research3.home security san antonio
Door and window sensors are also another key invention in home safety and security. These work on the basic principle of infrared, that is when a door or a window is opened and the infrared sensor is cut without prior intimation to the system, the security alarm goes off and alerts the concerned party of an abnormality in situation. This is very useful when people fear of break ins via windows and doors in the house. These security system can also be combined with other sensors like motion sensor and fire and smoke alarm sensor, finger print recognition, doorbell view camera etc. these security system can further be programmed to contact the police department and your personal guardian immediately in case of an emergency at home. The doorbell camera allows you to see who is at the front door before opening the door to welcoming them.