Raymarine Autohelm ST50 Windvane Wind Speed  PCB

  • 1 x Complete PCB

This kits suits wind vanes with black or red plastic pods.

Note: Testing speed sensor circuit  is difficult.

It can only really be tested with the tester I sell in my eBay shop.

Or while attached to the instrument as the circuit on pcb in wind vane is incomplete it needs components inside display.

When connected to instrument you should see voltage switch between 8v to about 1v as shaft rotated.