Brief Introduction: GST501X is GPRS/GSM Model GPS intelligent terminal (Mobile user terminals) Built-in industrial GPRS/GSM communication module and the newest SIRF-Star III High-sensitivity GPS receiver positioning module, adopt GPRS and SMS Dual-mode communication, terminal run stably and reliably, full functions, multi-interface, the terminal can be applied to concrete, rental, logistics, public transport, bus and other fields, and also according to different industries, tailored to different users. Main Features: 1, Smaller and compact size,be easy to install; 2, Accurate GPS positioning, dynamic positioning deviation is less than 5 m; 3, Support GSM voice and SMS functions, UDP / TCP protocol communications in GPRS mode; 4, Support the GPS data uploading at intervals and location; 5, Support the two way voice communication function; 6, Support Call Barring of group numbers function; 7, Support two way SMS communication via Mobile and PC software; 8, Support the mute function; 9, Support authorized tapping function; 10, Support protection from high or low level voltage function; 11, Support 5 levels of signal detection; 12, Support the data resend from signal dead zone function; 13, Support remotely locking vehicle function; 14, Support watching vehicle function; 15, Support SOS alarm function; 16, Support the power-off alarm function; 17, Support the high-voltage under-voltage alarm and alarm functions; 18, Support over speed alarm function; 19, Support parking alarm function; 20, Support illegal door-open, illegal engine-start alarm function; 21, Support fuel consumption detection; 22, Support fuel changing alarm; 23, Support mileage statistics; 24, Support Geo-fence alarm; 25, Support fatigue driving alarm; 26, Support temperature detection alarm; 27, Support 3 serial peripherals (such as CCD Camera,Handset,Oil Collector,Fuel Sensor,Temperature Sensor,RFID Reader,Imagine Collector,Intelligent Voice Broadcasting Apparatus,LED Advertisement Screen,etc). Specification: 3.1. Hardware parameter: Working voltage: 8VDC~36VDC Working current: 50mA~160mA GSM module: inside contain frequency GSM 900/1800 inside contain frequency GSM 850/900/1800/1900Mhz (can tailor) Communication protocol: UDP/TCP(can customize) GPS module: GPS SIRF-Star III CMOS chip group GPS sensitivity: -159dBm GPS frequency: L1, 1575.42 MHz C/A coding: 1.023 MHz chip rate Channels: 20 channels for tracking Position accuracy: 10 meter, 2D RMS Speed accuracy: 0.1 meter/second Time accuracy: GPS synchronization Default data: WGS-84 Recover: Average 0.1 second Hot start: Average 1 second Warm start: Average 38 second Cold start: Average 42 second Height limit: 18,000 meter (60,000 feet) max Speed limit: 515 kilometer/second (1000 knots)max Acceleration limit: Less than 4g Expansion peripheral: Peripherals can be accessed by an extension (such as: Handle / scheduling screen / camera etc.) 3.2. Others: Work temperature: -20~70 C Storage temperature: -30~85 C Humidity: 5% ~95% non-condensing Terminal size: 130 mm, 95mm, 32mm Inside battery: Continuing working not less than 4 hours. LED light: Red: MCU status; yellow: module status. Standard Accessories: Power Line, 9PIN Expanding Line 1, 9PIN Expanding Line 2, SOS Alarm Line, GPS Antenna, GPRS Antenna, Velcro, Relay, Warranty Card, Return Receipt of Warranty Card, Qualification. Terminal size: 130 mm, 95mm, 32mm.