Product Specification VT400 is a self-developed by Shenzhen Thinkrace technology co., LTD, using for gathering vehicle ECU relevant data through OBD interface, and integrated GPS, upload the data via the 4G network servers, provide WIFI, vehicles detect, vehicle historical route, exact itinerary report, fuel consumption analysis, driving behavior analysis and other functions or automobile terminal. Features Automatic recognize vehicle diagnostic protocol. Support TDD-LTE and FDD-LTE, support vehicle WIFI, can connect 10 terminal devices in the same time. Easy plug and play, easy install. Industrial-grade module, suitable for long-term continuous work, strong anti-jamming capability. Ignition and flameout report, automatic dormancy, low power consumption. Support K line upgrades, serial ports upgrades, and FOTA upgrades 3 methods. Built-in GPS chipset, accurate positioning. Built-in 3D acceleration sensor. Automatic compensation, high speed compensation of turning, make sure historical route smoothly. High capacity FALSH storage, blind area data upload automatically. Accuracy mileage analysis, fuel consumption analysis and driving behavior analysis, not only providing single trip mileage and fuel consumption analysis, but also provides differential mileage analysis. Support driving behavior analysis, devices equipped such as acceleration, deceleration, refuel, sharp turn, idle for a long time, speeding, fatigue driving real timeâ?¦ real time remind functions, can accurate analysis of the high speed/ high speed time of duration, mileage ratio, driving time and mileage, etc. Support vehicle diagnosis, engine failure, maintenance reminding, throttle valve cleaning, insufficient voltage etc. over 10 kinds of alarm, car's problems can be discovered early. Support the short circuit, over-voltage, over-current protection. Conform to standard of IS07637. This device not only support OBDII protocol models perfectly, but also for models that do not support OBDII also can be a very good support by simulate data. GPS Specification GPS ChipsetMTK3337 Receive Frequency1575.42MHz Acquisition Sensitivity-144dBm Tracking Sensitivity-159dBm GPS location timeCold start: 45s (Open sky) Hot start: 2s (Open sky) GSM Specification 4G module frequency (NOTE: Support difference countries and regions by change different module chipFDD LTE: B1/B3/B8 TDD LTE: B38/B40/B41 TDSCDMA: B34/B39 UMTS: B1/B8 GSM: 900/1800MHz General Specification Place of OriginGuangdong, China (Mainland) TypeOn-Board Diagnostic Power