得到的最后一个版本 RPM and Speed Tachometer 从 Tools 对于 Android. The app show the motor RPM, depending on the engine sound and the Speed through the GPS.It is necessary to indicate the motor type first to use the application.Do not use the application... 阅读详细信息.
RPM and Speed Tachometer com.francesco.carmeter 应用程序详细信息