D12 power-assistant sensor is with the characteristics of 12 signal outputs, fast power response, good accuracy, strong water resistance, high reliability, etc. Its installation and removal is quick and easy. Sensor is divided into two models of left installation and right installation, which can be installed in different locations to adapt to a variety of vehicle models.

Model specifications: left model D12L，right model D12R.

Sensor model:

Sensor side view:

Magnetic steel plate dimension:

Wire leading mode: three-wire system

Standard interface: SM-3Y

Left position installation instructions:

      Installation of D12L power-assistant sensor doesn’t need remove the crank, and the sensor can be installed directly on the electric bicycle axle.

Fixing the sensor with a cable tie:

Installation of magnetic steel plate dimension:

      Magnet plate assembly should plug the two pieces of magnetic steel plate according to the following diagram, which is then fixed by using a circlip.

The assembled magnetic steel plate is as shown in the diagram.