Fuel Sender ?

[olds443]

I was wondering if there is a way to identify an analog sending unit from a digital one. I have a tank I bought for my car and it came with the hanger/sending unit, etc but I am not sure which one it is. Makes a difference when you go to buy gauges.
Thanks all,
Jason

 

[olds443]

ttt

 

[Ormand]

The resistance is different, I think. The digital should read about 90 ohms, full. But you better check against another car, the service manual is confusing on this. (To me, anyway)