Is the boost gauge mechanical, or does it have a sensor?

GlowShift’s Boost gauges feature either a boost hose for a mechanical boost reading or a pressure sensor for an electronic reading.

Series featuring a mechanical boost gauge with hose include:

• 7 Color Series
• Tinted Series

Series featuring an electronic sending unit:

• 10 Color Digital Series
• Elite 10 Color Series
• MaxTow Series
• 3in1 Combo Series