Description: * 30 zones with LCD display (22 wireless zones and 7 wired zones and 1 relay outlet), It has the zones display, in this case, you can exactly know the alarm location. * Telephone line anti-cut function, SIM card to tracking: when there is somebody illegally cut the telephone line. * Accessories have low power indication function, once there is a power off, the system will immediately inform the alarm center. * Have self-check functions; it will self-check one time per 12 hours. * Siren hooting time: the time can be set from 1 to 30 minutes. It will non-stopped hooting if over 30 minutes. * Time-delay to arm, which can be set from 0--99 seconds; * Time delay to alarm, which can be set from 0--99 seconds; * Remotely controls siren ON/OFF, Remotely controls disarm/arm. * Spot hooting selectable: mute/sound * It has the priority to occupy the telephone line. * Listen-in function: After input the password, you can clearly hear what is happening. * Can remotely prolong or shorten the listen-in time. * Emergency help: One-touch calling to police. * It has the telephone extension jack. You can use telephone set at the same time you use alarm system If you would like to more information about security alarm system, please contact us, we will reply you at the first time, thanks 1 sets per color box