mastiff:
Not looking for the gauge. I have that.
Looking to get the actual hall effect sensor that snaps into the gauge.
all the utilities are using them, tankutility.com also uses them.
they just want 200$ .
It would probably cost 6$ for the sensor and a couple resistors and I can connect it to an Arduino and have it notify me or when less than a certain percent. or graph the tank level.. etc...
TankUtility sells a "WiFi Enabled Propane Tank Monitor" for about $200, but it also looks like they sell "dial replacements" for $15. See the link in post #48 and this one;
I don't know what exactly they mean by 'dial' but the part numbers in the pdf look like Rochester gauge numbers. It could be a 'dial' is the gauge with the hall sensor.
It also looks like they sell "Dial replacement