Faria Beede Instruments 12845 Euro Oil Pressure Gauge - 100 Psi, 2 Jackets & Vests The innovative hybrid multi-layer construction

The innovative hybrid multi-layer construction is designed to provide complete automotive interior protection

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With excellent thermal properties

ensuring stability

Faria Beede Instruments 12845 Euro Oil Pressure Gauge - 100 Psi, 2 Jackets & Vests The innovative hybrid multi-layer constructionA pressure gauge operates by sending a low amperage current through the gauges' meter to ground via a sending unit with variable resistance. The resistance of the sending units increase or decrease with the changes in pressure, temperature, etc. As the sender's resistance varies, the amount of current allowed to flow through it to ground changes and the meter deflects, showing the change in pressure.