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GPS operation

GPS operation

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LOCATION METHODS

GRETA works in parallel with several different systems, which guarantees a particularly high and exact accessibility of the transmitter - even if GPS fails:

  • GPS communicates via the mobile network, which enables 24h monitoring of your pet. As mobile phone charges are incurred during communication, a low monthly service fee is due. This is not a typical mobile phone contract. You can unsubscribe and log back in at any time. No activation fee or other additional costs (how does GPS work?)
  • GLONASS is another satellite-based positioning system using the same method. However, it differs in the method of information transmission (learn more here)
  • GSM positioning refers to the determination of the location of an activated terminal device that is registered in a radio network and operated on the basis of Global System for Mobile Communications (GSM) by the mobile network.
  • the inertial navigation system is a spatial combination of several inertial sensors and is therefore an inertial navigation system. GRETA works with accelerometer, magnetometer and gyroscope

After you receive the device, you can activate it on www.prothelis.de/aktivierung and pay of course only then the service fee. You can cancel the service at any time. 
No minimum contract duration.
No period of notice. 

Overview of service fees

The service fee covers the costs for the mobile network and the 24-hour notification service, which will contact you by telephone in an alarm situation. When activating your tracker, you can choose one of the following packages:

  • Monthly payment - 4,99 € per month
  • 6 months in advance - 4,59 € per month
  • 12 months in advance - 4,19 € per month
  • 24 months in advance - 3,79 € per month

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Overview of countries

The service package includes the worldwide use of GRETA. This currently includes the following countries:

EUROPA:

Åland (Finland)
Austria
Azores 
Belgium 
Bulgaria 
Canary Islands
Ceuta (Spain)
Corsica
Croatia
Cyprus
Czech Republic 
Denmark
La Désirade 
Estonia
Finland
France
French Guiana
Germany
Greece
Guadeloupe
Hungary 
Ibiza
Iceland
Ireland 
Italy
Kosovo 
Crete (Greece) 
Latvia
Liechtenstein
Lithuania 
Luxembourg
Madeira (Portugal) 
Majorca
Malta
Marie Galante 
Martinique
Mayotte
Melilla 
Menorca 
Monaco
Netherlands
Northern Ireland
Norway
Poles
Portugal
Réunion
Rhodes (Greece)
Romania
San Marino 
Sardinia
Scotland
Switzerland 
Sicily
Slovakia
Slovenia
Spain
St. Barts
Saint Martin 
Svalbard and Jan Mayen Islands 
Sweden
Saints (Antilles) 
Switzerland
United Kingdom
Vatican City
Wales


INTERNATIONAL:

Abu Dhabi
Albania
Alderney
Anguilla
Antigua and Barbuda
Argentina
Armenia 
Aruba
Australia 
Azerbaijan
Barbados Islands 
Bermuda
Bonaire
Brazil 
Cambodia
Chad
Chile
China
Christmas Island (Australia) 
Republic of the Congo
Democratic Republic of the Congo
Curacao
Dominica
Dominican Republic
Dubai (United Arab Emirates)
Easter Island (Polynesia) 
Ecuador 
Egypt
Ferries and cruise ships 
Gabon
Ghana
Gibraltar
Grenada
Guatemala
Guernesey
Guinea
Guyana
Haiti 
Herm
Hong kong 
India 
Indonesia 
Isle of Man 
Israel 
Ivory Coast
Jamaica
Jersey 
Kenya
South Korea
Emirate of Kuwait 
Kingdom of Lesotho 
Liechtenstein
Macao
Madagascar
Malaysia
Mexico 
Netherlands Antilles
New Zealand
Nigeria 
Turkish Republic of Northern Cyprus
Oman
Pakistan 
Panama
Peru 
Puerto Rico 
Qatar
Russia, Russian Federation 
Samoa 
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Saudi Arabia 
Sharjah (United Arab Emirates)
Singapore 
South Africa
Saint Kitts and Nevis
Saint Lucia
Saint Vincent and the Grenadines
Taiwan
Tanzania
Thailand 
Tibet 
Trinidad and Tobago
Turkey 
Turks and Caicos Islands
Uganda 
Ukraine
United Arab Emirates 
United States 
Virgin Islands
West Bank
Zambia
Zanzibar


Translated with www.DeepL.com/Translator