Fuel tank sending unit

[Terrel01]

Does anyone know if the fuel tank gauge wants 120 ohms full scale from the sending unit or 240 for a 2005 Catalina 320? I have seen both numbers on the internet and cannot get an accurate reading on my old one.

 

[pk104]

240 to 33 ohms is the one you want. There a European version that is 180 to 0.