... sim card gsm gps gprs tracker with platform softwareApplication: Car/Motorcycle gps trackerWaterproof vehicle gps trackerAVL GPS TrackerCE,RoHs,FCCMain ... signal status, work well even in areas with limited sky view like urban canyonsFast Signal ... will realizeVelocity Accuracy0.1m/sTime AccuracySynchronized to GPS timeDefault datumWGS-84Hot start1sec.,averageWarm start38sec.,averageAltitude ...