The Innovative Controls TC Pressure Gauges have been
designed to solve all of the most common problems
related to fire apparatus applications. These include high
temperature gauge fill expansion, low temperature gauge
freeze-up, and accuracy issues related to use in extreme
enviroments. These gauges feature an over-sized internal breathing
diaphragm inside the case that compensates for liquid fill
expansion caused by high temperatures - preventing plug
failure and preserving gauge accuracy.