... is available. >>>>>Functions & Features of the King Pigeon GSM Alarm System:>>GSM Frequency: Dual-Band(900/1800MHz), Quad-Band is ... and gas leakage sensor,1XWatchdog zone for monitoring elder or child, 1XSOS zone for emergency help; >>Supports 3 SMS ... Fence King Pigeon is a professional GSM Alarms, GSM Alarm Systems, GSM SMS Alarm, GSM SMS Controller,GSM Automation system,GPRS Data Logger,Temperature ...