Feature: 1. High Precision: This engine boat instrument panel features high precision measurements, providing reliable data support by accurately monitoring the engine's water, oil temperature, oil level, voltage, and tachometer. 2. User Friendly: The panel offers a simple adjustment process and settings for the speed ratio. Users can easily set the necessary parameters by simply holding down the adjustment button. 3. Reliable Alert Function: The instrumentation assembly comes with a built in alarm function that can alert users of any abnormal conditions in the engine, ensuring engine safety. 4. Measurement Specifications: The water temperature display range of 40‑120 degrees Celsius, an oil pressure display range of 0‑145 psi, an engine speed range of 0‑3000 RPM, and a voltage display range of 8‑16V. 5. 5 Gauge Set: This comprehensive 5 Gauge Set provides a complete range of information about the engine's condition, ensuring users have all the knowledge they need to operate their boat safely. Specification: Item Type: Engine Boat Instrument PanelMaterial: Metal, plastic .Function: Water/Oil Temperature, Oil Level, Voltage, and RPM Opening Size: Approx. 260 x 170mm/10.24 x 6.69inWater Temperature Range: 40-120°C Oil Pressure Range: 0-145 psi Engine RPM: 0-3000 RPM Operating Voltage: DC12V Voltage Range: 8-16V Operating Current: ≤100 MA Operating Temperature: -30°C to +75°C Storage Temperature: -40°C to +85°C Easy Installation Steps: 1. Drill holes on the instrument panel. 2. Insert the gauge panel into the holes. 3. Secure the gauge with M4 nuts and C-type clips. Speed Ratio Adjustment: 1. Press and hold the black rubber button on the instrument for 3 seconds to enter the speed ratio setting mode. Release the button to exit the setting mode and automatically save the data. 2. While in the setting mode, pressing the button will increase the value, and releasing and pressing the button again will decrease the value. The speed ratio can be adjusted from 1 to 300, with a step value of 0.1 for the range of 1-12, and a step value of 0.5 for the range of 12-300. Adjust the ratio value as desired and release the button for 3 seconds to automatically save the setting. 3. If the transmitter is installed on the flywheel, the ratio value is equal to the number of engine gears. If the speed signal comes from the W-terminal signal, the ratio value is equal to half of the number of terminals (Terminals/2). For gasoline engines, the speed ratio is equal to the number of cylinders (Cylinders/2). 4. Default Speed Ratio: 138 Key Features: 1. Instrument cluster includes Water/Oil Temperature, Oil Level, Voltage, and RPM gauges. 2. Equipped with alarm function. 3. Water temperature warning light functions when the temperature exceeds 90°C + S-04 or S-05. 4. Engine oil light operates when the working pressure is low at 0.8kgf/cm2 + S-02 or S-03. Application: The panel only needs a unit area of 300x190mm to combine 5 instruments together, which greatly saves the use of space, and can be installed in the central control of your yacht RV truck working vehicle, and understand the status of the engine at any time through the data of the instrument Fitment: Fits for 12V yachts, RVs, trucks, ships Package List: 1 x 5 Gauge Set Instrument Panel1 x Manual2 x Key