re100:
ok thank you i'll try it, but i also see a sensor name : Eyourlife Universal 200PSI Pressure Transducer Sender Solenoid for Oil Fuel Gas Air Water C3.
That's a 200 PSI pressure transducer!
you said: "i want to calcul the tank level gas, and level water"
Do you know what the pressure will be at a depth of 1 meter ?
Yours,
TonyWilk