brake/clutch fluid reservoir

[bliss]

My ERA was built in the late 80's so there are a lot of old parts.

For example, my combination brake/clutch fluid reservoir - I ordered a new one from ERA - it has two spouts at the bottom and one in the middle and a cap.

My 'old' reservoir has one spout at the bottom and a cap that appears to be wired to a light on the dash that signals red when the fluid is low. That signal is apparently triggered by a float inside that reservoir (the reservoir provided by ERA has no float)

The old unit - the float keeps coming off inside that reservoir so I thought that replacing it was the best course of action. Now, I'm not sure what to do. What happens to the warning light since that is no float and therefore no connection to the dash light?

Any input will be appreciated.