... device, car tracker, vehicle tracker TF to save logo data Kinds digital I/O 2 AD input multiUART connection RS3000 is an ... speed, engine, ACC, doors opening, signal lamps, brake, vehicle photo data, A/D input to support kind of sensors, like the ... rich functionality with kinds of value-added service, like transparent data transmission to other standard RS232 device.Optional microSD/TF card ...