Major pressure gauges market participants include Ametek, Badotherm, Circor, Dwyer, Emerson, Fluke Corporation, Honeywell International, Kobold Instruments, Newbow, Omega Engineering, QED Aerospace, ...

The oil pressure gauge works much like the fuel ... a drive gear and a driven gear, and the gauge. Mechanical speedometers largely fail due to the absence of lubrication at the speedometer head ...