All electronics ship with US style plugs.You may need a voltage converter or a plug adapter.
Special Features
1-Channel GSM SMS alarm, external rechargeable battery (not included) for power failure alarm.
SMS alarm system can send SMS alert messages to up to 6 preset mobile phones when any alert input is triggered.
The input of GA01P is the switch . When the input port is shorted to the ground (GND), GA01P will send an alarm message to the preset mobile phone, or call the set alarm number.
The content of the SMS alarm message can be set by itself. You can use text custom alert SMS.
Smart and slim gsm design box for easy installation on other target system boards, adding gsm alarms.