tracker 260,000 waypoints memory function support two way talking GSM freq:GSM ... tracking, buy gps trackerName: Personal & Vehicle GPS Tracker with 260,000 waypoints memoryModel: PST-T100ST100S has the following functions and features ... sec., averageWarm start38 sec., averageCold start42 sec., averageAltitude Limit18,000 meters (60,000 feet) max.Velocity Limit515 meters/second (1000 knots) max ...