Question for thee,

Just realise I may have cocked up on this, I ordered a Hall effect sensor for the speedo (to measure the prop rev without the magnets) , where-as I think I should have ordered a magnetic proximity sensor (not the one that uses magnets on the propshaft)

Can I use the hall sensor

Cheers

Actually, addition to that, just realised that the hall effect sensors are rotational and fit into drive gear, this is not so I presume it must be an inductive speed sensor. I can't for the life of me find the reciept from speedycables.

Cheers

I have a hall sensor which i was going to fit on the front hub (see thread in sva section) which is now going to go on the prop, picking up the bolts as they pass.
I may fit one long bolt so i get 1 signal per revolution.
kenton

AFAIK a hall effect sensor WILL work by detecting metal rather than just magnets, so you can use it to detect-for intance prop bolt heads
Not sure what you mean by "fit into drive gear"?

yep, your right cheers.