GSM MMS Alarm System,S3622; CE Approved; Tri_band 900/1800/1900MHZ; Security ... 8 Wireless Zones GSM MMS Alarm System,S3622;GSM MMS Alarm System,S3622;CE Approved;Tri_band 900/1800/1900MHZ; ... alarm home;3 Wired zones and 8 Wireless ZonesThe S3622 is designed for house, station and office applications. ... send a command to the S3622, Then it will reply a photo immediately. The S3622 equips 2 Output relays, ...