1Durable Material: The engine tachometer panel is made of 316L stainless steel front cover bezel, antifog curved glass cover, industrial grade electronic components and structural parts, which can withstand mechanical shock and vibration and will not rust. 2IP67 Protection Grade: The curved glass cover of the multifunction meter with antifog function, IP67 waterproof and dustproof grade, can work normally in ?30?+75 environment, which is very suitable for marine and various harsh environments. 3High Accuracy: The tachometer adopts stepper motor to drive the pointer, and the pointer display has the characteristics of high accuracy of indication, good repeatability, high versatility, reliable and stable, easy to use. 4Multifunction: The panel can display engine speed 0?4000RPM and 9999.9H, and it comes with alarm, Engines Stop Start On Off, low oil pressure alarm, water temperature alarm, backlight button, and preheat button, etc. 5Wide Operating Voltage: The use of ultra wide working voltage design, long term working voltage 9?32V, up to 36V ( 1 minute), working current 100mA, ultra low power consumption design. 6Firm Installation: The tachometer back harness connector with clips can ensure a firm connection between the instrument and the harness, so that it can work reliably even in strong vibration situations. 7Wide Application: Multifunctional instrument panel can be used in engines, generator sets, RVs, yachts, fishing boats, ships, construction machinery, agricultural machinery, modified vehicles and other fields.