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New WiFi GSM GPRS Home Burglar Alarm System IOS/Android APP Control Siren

WiFi Wireless GSM SMS Home Security Alarm System IOS Android Control RFID Keypad WiFi Alarm System. Q: Can this alarm system work with WIFI and GSM Sim Card together? So if the WIFI failure, G90B can switch GSM/GPRS mode to work. User can connect alarm system with WIFI and GSM Sim Card to work. And […]

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