People's standard of living, gradually began to pay attention to safety, and security includes not only the personal safety, and member of the family and property safety, how to more effectively safeguard the personal property security, is that people now 热谈 topic, and technical prevention also gradually get recognition, on the one hand from and technology mature, on the other hand also comes from changing attitudes of consumers. In order to solve the family place, should not be, or not easy wiring intrusion alarm, wireless alarm is according to the characteristics of the application of research and development of such places. With the progress of society and the continuous development of science and technology, the scope of using wireless alarm products is more and more widely. According to the using situation, home alarm, wireless acousto-optic alarm and burglar alarm two main. Wireless acousto-optic alarm system at the critical moment of practical value Scenario 1: weekend, home to the guest, cheerfully prepared lunch for the guest, everything looked so well, almost perfect, is ten