... Fire/Somke/Water Flood/Door Contact/PIR SensorsAlarm System Wireless,alarm system,alarm, gsm household alarm,anti-thief alarm, ... >>>>>Functions & Features of the King Pigeon GSM Alarm System:>>GSM Frequency: Dual-Band(900/1800MHz), Quad-Band is ... functions and features are available. >>>>>King Pigeon GSM Alarm System Model List: ITEM \ MODELS100S110S120S3523S3526S3524AGSM FrequencyQuad-Band,GSM850/900/ ...