... Disarmed, Power status, Siren status and GSM Signal status.10. Auto-detect and report, GSM Signal WEAK alarm, SMS Switch is available. ... >>>>>Functions & Features of the King Pigeon GSM Alarm System:>>GSM Frequency: ... King Pigeon is a professional GSM Alarms, GSM Alarm Systems, GSM SMS Alarm, GSM SMS Controller,GSM Automation system,GPRS Data ...