Feature 1Weatherproof: IP67 waterproof and dustproof grade, with curved glass, antifog, no need to worry about the damage bad weather may cause. 2Long Durability: Made of 316 stainless steel, PVC and ABS, it can be used for a long time even in acid, alkali and humid environments. 3High Accuracy: With ultrawide working voltage design, longterm operating voltage is 9 to 32V,maximum can up to 36V. Low power consumption and high accuracy. 4Wide Application: Suitable for a full range of stepping instruments, can be used for engine/generator sets, ships, construction machinery, agricultural machinery, car modification, etc. 5Vibration Resistant: Snap together with the harness connector to achieve the secure connection, so that the tachometer gauge can work normally even under strong vibration. 6Easy Installation: Each of our gauge will be shipped with a detailed product manual. The manual will clearly describe the installation, wiring and use functions of the product.Item Type: TachometerMaterial: ABS+PVC+Stainless SteelBackight Color: Red, Green, Blue, White, Yellow, Cyan, Purple (adjustable)Signal: Speed PulseRange: 0-7000 RPMWorking Voltage: 9-32V DCInstallation Diameter: Approx. 85mm/ 3.35in, and ensure that there is at least 55mm/ 2.17in space behind the dashboardWorking Temperature: -30-+75Storage Temperature: -40-+80Applicable Scenarios: Suitable for automobiles, engines, boats, RVs, yachts, engineering machinery, etc. .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 xTachometer1 x Manual1 x ScrewCap