Propane Tank Gauges from Amazon - How to check how much gas is left in your propane tanks! Easy!

I've got propane tanks and I'm not sure how much propane is left. I picked up this 2 pack from Amazon cause it was highly rated and cheap. They were easy to install but have one flaw.
To learn more or buy it, check it out on Amazon (affiliate): amzn.to/3rZknku
#propanegauge #propanetank #gastank
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[@James_Knott]

One thing about those 3 scales. The tank pressure vs remaining fuel is determined by Charles' law, which describes the relationship of pressure and temperature in a fixed volume. However, the temperature is expressed in Kelvins or temperature above absolute zero. The temperature range you'd normally be using a BBQ in is trivial compared to the difference from absolute zero. I have one of those, with a single scale and haven't noticed a significant difference on warmer or cooler days. Also, while I don't know if it's used in these cheap gauges, it is possible to use temperature compensation, as is done on more expensive & accurate gauges. Remember, we're looking for a relative indicator, not precision.

[@goldassayer93555]

Use a bathroom scale. stamped on the tank is the tare weight which is the weight of the empty tank. Porpane weighs 4.11 pounds per gallon. just do the math.

[@johnny0723]

Thanks, will use that in a pinch, but for now, I'm hoping these gauges will give me a live look whenever I take a peek at it, vs having to whip out the scale each time. Appreciate it!

[@James_Knott]

There are even scales designed for that available and they're not expensive.