The very small reed contact M5 is spare part for the supplied speedometer sensors. The reed contact made of VA is suitable for all instruments from motogadget. High-quality industrial grade (IP68). It reacts to magnets on rotating parts. 2 neodymium magnets are included. Thread size: M5 x 0,5 (fine thread) Length: 22 mm, incl. two screw nuts Cable length: 150 cm