I stumbled across an interesting sensor that I cant seem to find any information on. The way I understand it is that this strip sensor is applied tithe outside of a tank and the resistance changes as the level changes inside the tank... It says the resistance increases as level increases from 50 - 5…

External tank level sensing via density ?

michinyon October 2, 2012, 7:54am 4

The density of water does not change.

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