My propane provider hooked up a battery operated telemetry system on my propane tank in the back yard. They now have access to the data and I have it on an app they gave me. The app will also draw a graph of consumption over time. The plan is to send the truck out when it’s at 20 to 30%. I know in some areas propane is cheaper in summer, but my data says otherwise. Here it follows along with the price of gasoline. Enjoy.