The Drager 0.5 LPM Standard Regulator with Contents Gauge helps control gas pressure easily. It’s a small but powerful tool that does two jobs at once. First, it manages pressure. Second, it controls gas flow. You can also see how much gas is left thanks to its clear gauge. This makes it great for labs and factories. The regulator is easy to use and very accurate. It even has a safety switch to turn it off quickly. In short, this Drager device packs a lot of features into one handy tool.