Detailed Product Description wireless home gsm alarm system, burglar gsm alarm system, PTSN GSM alarm system, auto-dial gsm alarm, burglar gsm alarm, gsm alarm system. home gsm alarm, telephone gsm alarm1). Group SMS, phoneline ... can set zone 3 with delay timer, zone 4 without delay, or zone 2 is 24 hours zone, while zone 3 is normal zone, etc. 9 ...