... Security alarm, Security alarm system, Home security alarm, Wireless GSM alarm, GSM wireless alarm, Home burglar alarm system,Feature:1. maximum of ... zone and 46 customized staying defence zone2. 8 remote-control switches wireless port, you can use SMS to control the Switch on ... /off3. wireless frequency 315MHZ/433MHZ ,arm ,disarm, SOS alarm bu remote control4 ...