Specifications: Item Type: Digital Voltage Oil Pressure Temp Gauge Material: Stainless Steel 316L Bezel, Fog Glass Rating: IP67, Fully ; Excellent Fog Function Display: Voltage, Oil Pressure, Temperature Backlight Color: Red (default), Green, Blue, White, Yellow, Yellow Green, Orange, (color can be switched) Operating Voltage: 9-32VDC Operating Current: ≤60mA Operating Temperature: -30℃ to +70℃ Storage Temperature: -40℃ to +85℃ Rating: IP67, can work underwater at 1m / 3.3ft depth Fitment: Suitable for Boats, Yachts, RVs, Trucks, Motorcycles Wiring: 1. Red Wire: +9-32VDC 2. Orange Wire: Backlight (+) 3. Blue Wire: Power Negative (-) 4. White Wire: Oil Pressure Input 5. Wire: Temperature Input How to Use Installation steps: 1. a 52?53mm diameter hole in your central control or other pre installed location 2. Insert the gauge into the hole 3. Align the bracket screw holes with the screws on the back of the gauge, tighten the screws, and secure the panel with the bracket and frame 4. Plug the power harness directly into the back connector of the gauge, then connect the corresponding sensor and harness according to the provided instructions, and power on Gauge function instructions: 1. Short press the Mode button (4 seconds) to enter setting mode Short press the button (2 seconds) to cycle through the parameters of the gauge. For example, setting parameters for a oil pressure gauge can be selected in the of FO1?FO3. (This instrument only has pressure gauge parameters that can be selected, so short pressing does not switch the set instrument.) 3. Aft