... security, senior citizen monitoring, people locator. Gps Watch Tracker, Sistemas de Rastreo GPS ModelWT200ApplicationPersonal TrackingMaterialAluminum alloy case, black scrub paint, stable ... GPS chip groupGPS sensitivity164dbmGPS frequencyL1, 1575.42MHPosition accuracy2.5m, CEPC/A code1.023 MHzSpeed accuracy0.1m/sacquisitionHot start 1s, warm start ...