Features： 1、4in1 Guage: The multifunction pointer gauge can display oil level, oil pressure, water temperature and voltage, realtime monitoring. 2、Universal: The oil level, oil pressure, water temp, volt meter is applicable to the refitting of RV, yachts, fishing boats, ships, motorcycles, cars, etc. 3、Advantages: The multifunction instrument has the advantages of high precision, fast detection, excellent stability and short starting time. 4、Durable Material: The 4in1 instrument panel is made of stainless steel 316L frame and anti fog glass. Waterproof and dustproof, can adapt to various environments. 5、Easy Installation: Working voltage DC 9‑32V, low power consumption and long service life. The installation dimension is 85mm, and the installation and removal are simple. Specification： Item Type: 4in1 Guage Material: ABS, stainless steel, anti fog glass Working Voltage: DC 9-32V Installation Size: Approx. 85mm/3.35in Function: Display oil level, oil pressure (BAR/PSi), water temperature (℃/℉) and voltage Application: RV, yacht, fishing boat, ship, motorcycle, automobile modification, etc Package List： 1 x 4in1 Guage 1 x Manual