You will also need to consider induced noise on a long wire. Noise could, and will, cause false level detection at the other end. Shielding the wire will surely be necessary if you run the wires through your house wiring.
You will also need to consider induced noise on a long wire. Noise could, and will, cause false level detection at the other end. Shielding the wire will surely be necessary if you run the wires through your house wiring.