Autometer Black Stack 52mm 100 PSI 1/8in NPTF (M) Mechanical Oil Pressure Gauge

  
Bronze bourdon tube 270° sweep movement. Mechanical gauges do not require 12V power to operate. They make direct physical contact with the item they are reading. They do this through tubing or lines, which eliminates the need for electric signals. Ideal for vehicles that operate on voltages other than 12V, with no voltage at all (magneto applications) or operate on a battery with no generator. This range of Stack gauges have been specifically designed for vehicles with no or low powered electrical systems.