1Weatherproof: IP67 waterproof and dustproof grade, with curved glass, antifog, no need to worry about the damage bad weather may cause. 2High Accuracy: With ultrawide working voltage design, longterm operating voltage is 9 to 32V,maximum can up to 36V. Low power consumption and high accuracy. 3Long Durability: Made of 316 stainless steel, PVC and ABS, it can be used for a long time even in acid, alkali and humid environments. 4Wide Application: Suitable for a full range of stepping instruments, can be used for engine/generator sets, s, construction machinery, agricultural machinery, car modification, etc. 5Easy Installation: Each of our gauge will be with a detailed product manual. The manual will clearly describe the installation, wiring and use functions of the product. Item Type: Speedometer Material: ABS+PVC+Stainless Steel Backight Color: Red, Green, Blue, White, Yellow, Cyan, Purple (adjustable) Signal: GPS Installation Diameter: Approx. 85mm/ 3.35in, and ensure that there is at least 55mm/ 2.17in space behind the dashboard Working Voltage: 9-32V DC Working Current: 100mA Indication Range: 0-60MPH/H Working Temperature: -30-+75 Storage Temperature: -40-+80 Applicable Scenarios: Suitable for automobiles, engines, boats, RVs, yachts, engineering machinery, etc. 1 xSpeedometer 1 x Gps Receiving Box 1 x Manual 1 x ScrewCap