Yes, maybe it's a high/low cluster thing. I do have the low cluster, the sensor is still there but not connected (and I think the wiring is even there but taped back from the factory) and there is a low coolant icon but no bulb in the dash. I looked into hooking mine back up a long time ago when I first got the car but never did.
Anyway, it's the bottom of the level float stick that operates a magnetic switch in the sensor so hopefully that helps with figuring it out