Feature:1. Fourwithabuilt-inantenna 2. Andtwo GPSbasedpositioningmethod MBS3. Supportnetwork, messagingand Googlemaplinks, noregistrationplatform 4. Onlinereal-timetracking, reportingandmonitoringandemergencynetworksnoposition, automatically 5. Itrequiresapasswordandchangeanysettingstoprotectyourprivacy 6. Itcandetectandsolvesomeproblemsthroughthebuilt-inmonitoring CPU7. Built-in ON/OFFpower, support 7-30 Vinputvoltage, suitableforallcars 8. Supportstheinstallationofhiddenandopen 9. Locationqueryvia SMSor GPRS (TCP/IP)10. Itcanbefromacarbatteryorcarcigarettelighterpower 11.LEDindicatorshowsworkingstatusatanytime 12. Itcanaccuratelypositionevenweaksignals Specification: Dimensions 90*45*12mm Weight 45g Network GSM/GPRSGSMBand 850/900/1800/1900 Mhz GPRSClass 12, TCP/IPbuilt-in GSMmodule GPSModule SIRF3 Chip Speed Accuracy 0.1m/s GPSAccuracy 10m (2DRM)GPSStarttime Coldstatus 38s Warmstatus 32s Hotstatus 2s Voltageof Car Power System 7V-30 V Maximumaltitude 18, 000m Maxspeed 515m/s Gravityacceleration 4g Package Included:1XGPSTracker TK1101 X Wiring 1XRetail Box 1XEnglish Manual (Download)