... detector, gas detector etc., can monitoring several kinds of alarms. Alarm receive status: Preset 3 groups SMS, 3 groups MMS, 3 ... user. IR remote control: Delicate remote controller, with panic button. Backup battery: With one Li-on battery, can still working after ... Household gas leak, fire and other accidents,and give remote alarm Installed at the door, window, balcony door, important drawers, safes ...