... Code Security alarm, Security alarm system, Home security alarm, Wireless GSM alarm, GSM wireless alarm, Home burglar alarm system,Feature:1. maximum of 48 ... the alarm calling)7. Support alarm receiving center control the system arm or disarm.8. Support 24H armed, delay armed ... code, password operation.12.Self-contained user-defined ,Flexible system configure way, and be use at kinds of conditions.13 ...