Motogadget Motoscope Classic Ring Magnet 10/4

This powerful neodymium ring magnet creates a magnetic point for a signal pickup from your state of the art Motoscope Classic. It can be used as a magnet placed onto the wheel or any other part of your vehicle, so that information can measured by the msc. The magnet hooks up with a sensor in the tail light, (or wherever you put it) and allows the Motoscope to pick up data that can be useful as a tachometer,speedometer, or your 0-60 time among other things. 10/4 - This ring magnet has an outside diameter of 10mm and an inside diameter of 4 mm  15/6 - This ring magnet has an outside diameter of 15mm and an inside diameter of 6 mm