... record SMS alert for power off alarm history Wireless Home Burglar Security Alarm System with Intercom, Voice ... -SELLING!Features:1. 7 wired and 99 wireless defense zones;2. LCD screen with time clock ... power off.Components listMain panel 1 pc,Remote controller 2 pcs,Siren 1 pc,PIR sensor ... ,smoke detector,gas detector,heat/ temperature detector,wireless flash siren,glass break sensor,water detector,panic ...