Hi, i have an LPG tank with a gauge that works very similar to a car gas tank. The tank has an old fashion gauge on top with a needle that goes from red to green to show empty or full. This gauge has no physical contact with any gas & just has a magnet that turns the gauge.
I have found a replacement with 3 wires that works via 12v 0-90 ohms.
Any suggestions how i could get this info into HA or any other unit already out there that might do this like a sonoff/Tuya/Shelly that might transmit this like a temp gauge.