Vehicle GPS tracker Features:Build-in GPS Vehicles locatorWorks worldwide!GSM900/1800Mhz or GSM850/1900MhzoptionalHigh sensitivity, New technology and latest GPS chipset!Excellent for fixing the position even at a weak signal status.Work well even in areas with limited sky view like urban canyons .Very Low power consumptionFast Signal AcquisitionSupport single location and continuous trackingSupport alarm(optional)Support quick dialing buttons for 9 preset phone number(optional)Support check location by SMS and Internet Locate the locator holder by the mobile phone via SMSSOS button send out exact location for immediate rescue/action.

 SpecificationGSM module Build-in GSM 900/1800,850/1900Mhz (optional)GPS sensitivity -159DbGPS frequency L1, 1575.42 MHzGPS Position Accuracy 5m25mGSM Position Accuracy 100m500mVelocity Accuracy 0.1 m/sTime Accuracy Synchronized to GPS timeDefault datum WGS-84Hot start 1 sec., averageWarm start 38 sec., averageAltitude Limit 18,000 meters (60,000 feet) max.Velocity Limit 515 meters/second (1000 knots) max.Acceleration Limit  Less than 4g

 OthersOperating temperature -20°C 65° CHumidity 5% to 95% Non-condensingDimension 84 mm ×44 mm ×18 mmVoltage 12-24VAverage Current  <84mA when stand-byLED  One red/green LED showing GPS and GSM statusOutset SOS Key  One SOS emergency key: for urgent call

 LED State DescriptionRED LED indicate power state:State MeaningLight GSM out of serviceFlash every 7 minutes GSM works well

Green LED indicate the GPS signal stateState Meaning Light turn to dark GPS not located Flash or Light GPS position located