Home gsm alarm system 1.5 ways of arm/disarm 2.8 wired zones optional 3.GSM network 4.One-key arm function, easy operati ... --0255second)14) Checking arm, disarm, alarm issue, etc.15) The host adopts AC220V, DC12V/7AH dual power supply. Usually, recharge for battery ... , when AC power cut, it will auto-change into battery ...