... .48 wireless zone 5.Learning Code Security alarm, Security alarm system, Home security alarm, Wireless GSM alarm, GSM wireless alarm, Home ... switches wireless port, you can use SMS to control the Switch on/off3. wireless frequency 315MHZ/433MHZ ,arm ,disarm, SOS alarm ... the alarm calling)7. Support alarm receiving center control the system arm or disarm.8. Support 24H armed, delay armed ,immediately ...