... MHz)Network: GSM900/1800/1900 MHz(850 MHz optional)TX power output:1WAlarm SMS:3 recipients(cellphone number)Alarm Dialing:3 ... PIR detector, 1 pcwireless door sensor, 1pcsiren, 1pcremote controllers, 2pcspower supply, 1pcmanual 1pc For occasions:shop,convenience store,small and medium ... ,bank,financial office,office,computer room. 2012 GSM home phone Multi-functional Telephone Alarm System