ET-PREMIUM (SOS+MIC) DEVICE MAINLY USE FOR TRACKING INCLUDING MOBILE CUT OFF.
EEMOTRACK GPS works through a technique called trilateration. Used to calculate location, velocity and elevation, trilateration collects signals from satellites to output location information. It is often mistaken for triangulation, which is used to measure angles, not distances.
EEMOTRACK GPS trackers connect to a series of satellites to determine location. The tracker uses a process called trilateration which uses the position of three or more satellites from the Global Navigation Satellite System (GNSS) network and its distance from them to determine latitude, longitude, elevation, and time.