Digital Scale - Weigh Your Fuel CanistersUsing a digital scale to weigh your canisters is instrumental to ensure you don't overfill your fuel canisters. This digital scale lets you weigh your isobutane fuel canisters to ensure an accurate fill and avoid potential safety hazards. There are plenty of digital scale options on Amazon, some more expensive, and some less. This is the one we use. Digital Scale Specifications Color & Finish: Matte Silver Weighing Surface: 3. 94 Inches Square Type: