* Frequency: 434 MHz hopping code transition.
* The system could control and call the police by SMS method.
* Maximum 10 pieces 2-way LED transmitter could be learned, the transceiver range is 300 meters.
* 99 set wireless sensors; each sensor’s operation range is 70 meters. 
* 2 set wired sensors
* Backup battery operates if the AC Power couldn’t work.
* LED indicates the triggered areas.
* Low battery detection.
* Built-in siren for alarming if the sensors were triggered under Armed.