Where does the A3M Tsunami Alarm System work?
The A3M Tsunami Alarm System works everywhere in the world covered by GSM networks. Assuming your mobile telephone is logged into a GSM network in the country where you are staying, you will receive Alarms. Even in developing countries and in remote areas, the GSM network is usually as well-developed as in highly developed countries. When you travel in areas accessible to tourists, you should not encounter any problems with the reception of mobile phone signals. The following principle applies: Wherever you can use your mobile telephone to make calls, you will be able to receive tsunami warnings.
