2 types: 3Pin, 4Pin. 1 x 3Pin speed sensor (PC). 1 x 4Pin speed sensor (PC). Compatible with: most treadmill. Sheet Sensor Circuit Pedal Rubber Actuator For Roland Drum FD-8 Hi Hat. 3m Power Cord Cable for Shimano Electric Reel 18 ForceMaster 600/Daiwa 200J.