Description: Use 316L stainless steel, can be used for a long time, can be used in wet, acid and alkali conditions. IP67 waterproof and dustproof grade. With curved glass (with anti-fog function). To enable the gauge to work even under strong vibrations, there is a snap with the harness connector, which is the best and strongest connection. The instrument is waterproof, fog-proof, dust-proof . Suitable for the whole range of water seepage meters, with the advantages of low power consumption, long life and high precision. Standard red backlight. The power supply has reverse connection protection, energy saving and environmental protection. Widely used in yachts, motor boats, speedboats, fishing boats, luxury ships, and other related ships; Rv, engineering machinery vehicles, modified vehicles, battery cars, electric vehicles, rv, excavators, agricultural machinery, forklifts and other related vehicles; Engine set, engine and other related mechanical equipment use. Specification: Mounting hole diameter: 52 mm Input signal: 8-32V Operating voltage: 9-32v Operating current: ≤60ma Operating temperature :-30~+75℃ Storage temperature :-40~+85℃ Size Chart: Size:Approx. 8x8x7cm/2.8x2.8x2.75inch Package Includes: 1 Piece Instruments Digital Display Voltmeter 1 Piece flat cable 1 Piece Rubber stopper 1 Piece instruction book Note: All dimensions are measured by hand, there may be small deviations. Color may vary slightly due to the color setting of each individual monitor. Thanks for your understanding. Please enjoy your happy shopping time!