... voice prompt 3.Unique watchdog function Auto arm/disarm alarm system (LS-GSM-007) Features:* Group SMS, ... Station, the panel can set to communicate: after alarm dates transmitted, the Center Station operator can directly ... user to defined whether it is a real alarm or a false one; if it work without ... battery, built in siren, time IC Standard package:* Alarm Panel: 1* Remote Controller: 2* PIR Detector: 1 ...