Established in 2009, Dong Guan BlueFinger Electronics Co.,LTD is a manufacturer and trader specialized in the research, development and production of tablets Bluetooth keyboards. We are located in Dong Guan, with convenient transportation access. All of our products comply with international quality standards and are greatly appreciated in a variety of different markets throughout the world. If you are interested in any of our products or would l

1. Instruction The alarm system adopts SMS data transmission and voice platform of GSM network to send control command and receive alarm remotely. The system can be set delayed-arm. When a signal is detected by detectors, the detectors will send alarm signal to host immediately, then the host sends alarm SMS to its pre-set mobile phone numbers, and meanwhile dials its pre-set telephone/mobile phone numbers automatically and drive wiretap. In add