For reasons i won't go into, becuase it'll be a long and boring story, I'm after either of 2 specific temperatures senders:

Either:
One whose resistance increases and temperature increases

Or:
One whose return is not through the engine earth (ie two wire connection neither of which is connected to the sender body)

Anyone got any ideas? If its got an 1/8th NPTF thread then that'd be even better. I've spoken to ETB who didn't have anything and speedycables suggested something completely wrong!

thanks,
Chris