neil1967
Well-known member
I have recently bought a new Osculti water tank gauge, which has three connections on the back (Pos, Neg and Signal) plus a lighting connection, and the instructions show 3 connections to the sender unit (again, Pos, Neg and Signal); however, my sender units (probably VDO) only have 2 connections. Both gauge and sender are European resistance. Any ideas on how to connect the two units together?