The Concept2 Sensor Coil is an essential component designed to enhance the functionality and reliability of Concept2 RowErg, Model D and E Indoor Rowers, and the SkiErg. This high-quality sensor coil serves as the power generator, efficiently converting flywheel motion into electrical power to operate the PM5 Performance Monitor. Constructed with a compact circuit board and durable wiring, it's engineered for longevity and reliable performance, even in high-use gym environments. Features: