The SIERRA White Premier Pro Oil Pressure Gauge is a popular choice for gas and diesel inboard engines, White Premier instruments feature white dials with modern black and blue graphics and superior light pipe illumination. When illuminated, black dial grads and pointer become red. Fog-resistant design for enhanced readability.Key Features:Full automotive type lighting, no "halo" around dial edgesScratch resistant curved glass lenses, with polished stainless steel near-flush bezelsFog resistant designGauge range is 0-100 psi