It seems many of you are interested in finding an easy, remote way to monitor propane levels.
Maybe you should check out what this company called Tank Utility is up to. They don't have a propane smart meter on the market yet, but it looks like you can sign up to pre-buy one of their WiFi-connected smart meters which allows you to track your levels through your smartphone or computer. Theri site is here:
http://www.tankutility.com/.
What do you guys think of something like this?