G20Main FunctionAdopt wavecome double frequency GSM module.With color LCD show screen and keyboard on the host10 wireless guarding zones (1 wireless SOS zone, 1 fire alarm zone, and other 8 wireless guarding zones can be defined by user ), 1 external power failure alarm zoneSend SMS to 3 mobile phones automatically while alarmingCall 3 phones automatically while alarming Set the time of arm/disarm/partial armArm/disarm/partial arm by the keyboard on the host, remote controller or SMS.Set the host by keyboard on the host or SMSModify the name of 8 wireless guarding zones and inquire the status of host by SMS demandDefine the 8 wireless guarding zones as partial arm/arm by keyboard on the hostWith standby rechargeable batteryThe host automatically stores system status, while its power is offConnect with the alarm center through GSM networkPackaging listOne HostOne Wireless PIR motion sensorOne Magnetic door/window contactTwo Remote controllersOne SirenOne AC AdapterOne Manua