Take the guesswork out of determining how much gas is left in your grill's propane tank.
The best way to tell how much gas you have left is to weigh it.
Not much more than a glorified fish scale, this Original Grill Gauge works just fine. Hoist your tank and the gauge gives you a pretty good guesstimate of how much is left.
Although it is not precise, I take mine when I exchange empty tanks for full ones. You'd be surprised how many are under filled. Of course you do have a backup tank, don't you? And you do backup you computer don't you (one copy on premises and one copy off premises)?