Alarm to hostpstn gsm receiving frequency433mhz unobstructed effective range mopen area wireless zones99 wired zones2 lcd displayy sms phone numbers6 alarm to user phone numbers6 alarm to center phone numbers2 sound recordingyes alarm recordingyes alarmdisalarm typepanel keyboard remote controller phone sms local alarm sound scale dbm110 output power supply v12 power supply typecharger direct built in li battery battery working time hours6 operating hum