RBS has found this to be one of the most complete and easy to use hydrometer kits. First of all it comes in a handy durable plastic case with a foam lined inside on both sides to protect all your precious fuel measuring equipment.
Included in the kit is a beaker, a thermometer and four scales. That's right you get a gas and methanol, 2 to 35 percent, 32 to 60 percent, and the best for last 60 to 100 percent.
Thermometer is separate from the hydrometer bulbs.