... alarm system ,personal safety.centern monitor system,Alarm accessory.GSM alarm system,remote control,Wireless RF/TF module Home alarm system ,personal safety.centern monitor system,Alarm accessory.GSM alarm system,remote control,Wireless ... detector: 10m*120 horizontal+60 vertical 10. Optional sensor: Wire siren, wireless smoke detector, gas leakage detector, vibration sensor, siren with strobe ...