1Function: With oil volume, oil pressure, water temperature functions, has ultra wide working voltage design, low power consumption, and short start up time. 2High Precision: The multi function gauge adopts a digital display screen, which has the characteristics of high precision, good repeatability, strong versatility, reliability and stability. 3Premium Material: Made of metal front cover bezel and anti fog curved glass cover, which can be used normally even in marine harsh environments. 4Fine Workmanship: Professional manufactured, exquisite workmanship with unique design, ensure stable performance and high reliability. 5Installation: Cut an 52mm hole in the panel and allow a clearance of 55mm behind the panel to fit the gauge. Put the gauge in the hole and screw down.