Torque Spec for low oil sending unit

Not sure what you mean writing "low oil sending unit". But I thing you mean low presure warning light sender.
There isn't normally at torque setting figure for this, but make sure to have a new copper washer and don't over tighten it when installing. Check for oil tightness when engine is running, if some is leaking past washer, tight the sender a little more - housing of alu.
Erik

Thanks!

Thanks, Erik!
That's exactly what I meant .