Anyone know which hall sensor to buy for inside direct drive wheel

[Indigodee]

i am looking for a couple of suitable Hall effect trannys! To race in my direct drive wheel.
The numbers on the ones I dug out were unreadable so don't know which to get.
I do know they need to be the type with the feathered edges, in order to fit in the slots.
Any help greatly appreciated.
Thanks Dee.

 

[Deleted member 4366]

Honeywell SS41 or equivalent.