What does the rubber boot on the pressure gauge provide?

The rubber boot on the pressure gauge is designed primarily to provide protection from impact. When pressure gauges are used in various environments, they can be subject to drops, bumps, or other forms of physical stress that could lead to damage. The rubber boot acts as a cushioning layer, absorbing shocks and protecting the delicate internal mechanisms of the gauge, ensuring it remains functional even in challenging conditions.

While stability during use, insulation against heat, and weight reduction might seem relevant, they are not the primary functions of the rubber boot. Stability is generally achieved through the design of the gauge body and mounting options rather than the rubber boot. Insulation against heat is not a key feature, as the materials used in pressure gauges are typically designed to withstand heat without the need for additional insulation. Weight reduction is also not a goal of the rubber boot; its purpose is functionality and protection, not to make the gauge lighter.