Turbosmart's mechanical boost gauge is designed to provide accurate readings up to 30psi. It features a black face with a silver bezel and bright backlighting that ensures easy reading in any condition. The Turbosmart mechanical boost gauge is the perfect companion for any of Turbosmart's Gated Boost Control Valves, as its simple mechanical operation makes it easy to use. With this Turbosmart boost gauge, you can monitor your turbo system performance quickly and precisely without worrying about complicated settings or operations. With Turbosmart's reliable and accurate mechanical boost gauges, achieve peak performance from your turbo setup!