If you’ve read my guide to calculating how long your propane tanks will last, then you know estimating the answer involves math (yuck). And your forecasts will never be 100% accurate. If a 40-degree cold front blows in, you could burn through propane twice as fast as anticipated!

If you don’t want to whip out a calculator before every trip … there’s an easier way.

You would think that RV manufacturers would have automatic fuel gauges for your propane tanks. Kind of like you have a fuel gauge for your gasoline, right? Or at least something like an oil dipstick, which you can check occasionally?

Pros

• Accurate results!
• Incremental readings
• Remote monitoring
• Instant results
• Keeps your hands clean

Cons

• Not free
• (Might) require smartphone