The GTP API Gravity Calculator from Gammon Technical Products, Inc. provides users the ability to determine corrected API at 60 Deg F for jet, gasoline, and diesel fuels. The calculator is a digital version of our GTP-3012-1A and GTP-2727EF slide calculators and it also is capable of calculating the total weight of the fuel.
Ratings and Reviews
Works great but could use a better UI
This works great and I double checked with the wheel, though this could use a better user interface look. There is much unused white space in the app where they could have made the text and input boxes larger to scale with screen, because the numbers are small.
DOES NOT MATCH GTP-3012
I purchased this for easier reading of API Gravity readings when receiving fuel loads. I’ve checked it a few times against the “wheel” and it’s been .02 to .04 higher with each reading. That can result in a rejected load of fuel. Spent $10 on a item I can’t rely on.
Doesn't work. Can't select fuels.
With Family Sharing set up, up to six family members can use this app.