For about $3.30 per month you can use your Flymaster Live tracking instrument in dozens of countries, without any additional costs (see the map or list bellow). The Flymaster SIM will also allow your instrument to access multiple operators, providing super reliable coverage. After getting your card simply subscribe to the service using Paypal, the first month is free.
Also for about $5.50 you can extend the coverage of your FlymasterSIM to access even more networks and more countries.
This Extended coverage can be activated a month at a time.