... optional 3.GSM network 4.One-key arm function, easy operati Wireless & wired alarm system: 1) ... long distance monitor, arm, disarm and field alarm.10) Wireless detector and remote control are automatic ... 14) Checking arm, disarm, alarm issue, etc.15) The host adopts AC220V, DC12V/7AH dual power supply. ... ). When the battery is lower, it will alarm, the discharge limit protection circuit design, so ...