Feature:1. Sewage Water Gauge: High accuracy, low power consumption, with adjustable backlight. Anti fog curved glass, clear display.2. Wide Working Voltage: It has 932V ultra wide working voltage, and can up to 36V, safe and dependable to use.3. Application: Applicable to automobiles, marine boats, yachts, RVs, engineering machinery, etc, wide applications.4. IP67 Waterproof: Made of 316 stainless steel and ABS, IP67 waterproof and dustproof, durable even in acid, alkali and humid environments.5. Easy to Install: The installation is simple and does not require complicated operations, save your time and effort.Specification:Item Type: Sewage GaugeMaterial: Stainless Steel + ABSLight Color: Colorful (adjustable)Mounting Diameter: Approx. 52mm/2in, and ensure that there is at least 55mm/2.2in space behind the dashboardWorking Current: 18mASignal: 0-190Working Temperature: -30-+75Storage Temperature: -40-+80Applicable Scenarios: Suitable for automobiles, engines, boats, RVs, yachts, engineering machinery, etc..Package List:1 x Sewage Gauge1 x Cover1 x Manual