JIVTO Fuel Pressure Gauge, 1-1/2" Dia, 0-100 Psi/Bar/Kpa, 1/8" NPT connector

The gauge is usually filled with glycerin (or sometimes silicone oil). The liquid filling helps absorb vibrations, stabilize the pointer, and protect the internal movement. This design ensures more accurate readings in harsh environments such as vehicle engine bays.

The liquid filling improves vibration resistance but can be sensitive to temperature changes. At high temperatures, expansion may slightly affect readings. For extreme environments, some users prefer vented or dry gauges.

This gauge is ideal for automotive fuel systems, helping monitor fuel pressure in cars and trucks. It can also be applied in gas, water, and other light industrial systems where stable readings are required.

The stainless steel case and liquid-filled design make the JIVTO gauge highly durable. It resists vibration, corrosion, and mechanical shock, which extends its service life compared to standard dry gauges.