Overview: This GPS Tracker TK103B is a car gps tracker which is working based on the 2G GSM/GPRS network and GPS satellite positioning system. It set multiple functions of security, positioning, monitoring surveillance, emergency alarms and tracking in its entirety. It can track and monitor remote target by SMS, Mobile APP and Web tracking platform Besides, this vehicle tracking device TK103B is a full featured GPS tracker which is designed for a wide of vehicle tracking applications. It has multiple I/O interfaces that can be used for monitoring or controlling external devices It is supported by a wide of accessories, such as fuel sensor, shock sensor, siren, remote controller etc. Its built-in GPS receiver has superior sensitivity and fast time to first fix. Its band GPRS/GSM subsystem supports 850/900/1800/1900 MHz allowing the TK103B's location to be monitored in real time or periodically tracked by a backend server and mobile devices System integration is straightforward as complete documentation is provided for GPRS communication protocol. The GPRS communication protocol supports a wide of reports including emergency, geo-fence boundary crossings, low battery and scheduled GPS position Applications: used widely for vehicle and other moving objects tracking Specifications: Weight: 120g Network: GSM/GPRS Band: 850/900/1800/1900Mhz GPS Sensitivity: -159dBm GPS Accuracy: 5m LBS Accuracy: 100-2000m GPS Start time: Cold status 45s Warm status 35s Hot status 1s Working Voltage: 12 V - 24V DC Storage Temperature: -40C to +85C Operation Temperature: -20C to +65C Humidity: 5%--95% non-condensing Special Functions: Remote control, Voice monitor, Remote cut off engine, Movement alarm, Shock alarm, Door open alarm Material: Metal+Plastic colour: As shown Package Contents: 1 set x TK103B GPS Tracker Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.