Shenzhen Brother Security Co., LTD is an enterprise integrating product designing, manufacturing and sale. Our main products wireless GSM alarm system, wireless network alarm system, PIR detector and other security products. Since established, we have built a stable and wide sales network in domestic and overseas market. And many customers at home and abroad source from us. Our product are exported to many countries in Europe, American, South American and other regions. <br /><br />In order to meet the customers