Shenzhen Sinda Technology CO., LTD is one of the leading manufacturers of the newest intelligent security products. We have the best team with several years of experience, high technology and high quality in professional research, producing and selling. The specialties of our technical designers cover electronics, automatic control, computer application, and communication and so on. Therefore, all our products have standardized administration in every process, from hardware developing, designing, technology, soft-ware developing to hardware test and software test. They are applied to the security installation, data monitor and long-range supervision systems of some areas, such as family, electric power, transportation, petroleum, chemical engineering, coal, railroad, government, police station?etc. Here are the series of our products of PATROL HAWK: Wireless GSM Alarm System, Auto-dialed Alarm System, Intelligent appliance-controlled Alarm System, Wireless PIR Motion Sensor, Wireless Smoke Detector, Wireless Gas Leak Detector, Infrared Beams Detector?etc. PATROL HAWK security alarm host is an item of high new technology which has been assessed by Shenzhen Technology Bureau and passed the examination of Public Security Office. The series of PH- G GSM Alarm products, which are researched and manufactured by ourselves, are in the leading level in our country among this kind of product. Our company insists on the conception that people is center, technology is first. We perfect our service management system by using advanced management mode, and offer our customers advanced and high quality security products with our heart and soul. We believe that we will be your faithful friends and reliable partner.