Features:
External speed sensor hall for controller of electric bike, scooter and so on. The magnetic head is made of quality material, antirust, , . Easy to install, just clip the magnetic head to the spoke, and when wheel runs the magnetic head would work to transfer signal to sensor. It is used to provide sampling signal for LCD/LED display of electric bike, so that display can test bike speed. Nice accessory for DIY your own electric bike or scooter.

Specification: Material: Plastic
Color: Black
Cable Length: Approx. 186cm / 73.22inch
Magnetic Head Size: Approx. 1.6 x 1.2cm / 0.63 x 0.47inch
Weight: Approx. 48g
Package Included: 1 x External Speed Sensor
1 x Magnetic Sensor

Note:
Yellow cord is for negative electrode, red for 5V power, blue for Hall signal.