The GSM frequency of JTS-G-DW is 900/1800MHZ The GSM frequency of JTS-G-DWA is 850/1900MHZ Introduction 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 will dial 6 preset telephone/mobile phone numbers automatically. In addition, users can dial the host and set in arm/disarm mode by any phone. Main Function * With wavecome double frequency GSM module * 8 wireless guarding zones (1 wireless SOS zone, 1 wireless fire alarm zone, and the other 6 wireless zones can be defined by user), 1 external power failure alarm zone. * Can set 6 mobile phone/telephone numbers for auto-dialing alarm. * The host automatically stores system status, while its power is off. * Can monitor the alarm site and report the alarm zones. * Remote arm/disarm * You can increase/decrease detectors. * Can program the alarm host by wireless keyboard or phone. * With voice reminder while alarm host is working. * With standby rechargeable battery and support dialogue. * Wireless signal transmission, easy installation, and can not afraid of cutting line. * Connected with the alarm center through GSM network