This product, ECD-200BT-5, allows you to use of a mechanical-cable speedometer to be used in conjunction with a modern drivetrain which provides only an electronic output. 36” cable available for GM thread-on, GM clip-on and Ford clip-on style speedometers. Powerful motor is quiet enough to mount the module inside the cabin. Waterproofed case can also be mounted under the hood, or even inside a fenderwell. Bluetooth-enabled to sync with available mobile app for stone-simple set up. Supplied programming switch and LED readout make setup easy. For OBD II equipped vehicles, the supplied pigtail will easily plug into the DLC, simplifying the wiring connections. This is the replacement product for part # ECD-100-5