Feature: 1. STABLE PERFORMANCE: Made of 316L stainless steel bezel and curved glass, this meter is suitable for use in acidic, humid environments with fog proof function. IP67 waterproof and dustproof, ideal for marine and harsh environments. 2. ACCURATE DIGITAL DISPLAY: High precision, high repeatability, and easy to use digital display with red backlight for night time boat viewing, ensuring accurate and reliable readings. 3. 4 IN 1 DESIGN: Get oil level, oil pressure, water temperature, and voltage information with just single meter, reducing the number of devices and saving space, especially suitable for limited spaces on boats, yachts, RVs, etc. 4. ENHANCED DATA READING: Boost efficiency with this meter that eliminates the need to switch between different gauges. Easily view oil level, water temperature, and voltage data at a glance for convenient use. 5. MULTI FUNCTIONAL: Featuring wide working voltage range of 9‑32VDC, low power consumption, and quick start up time. Snap connection design ensures secure attachment, suitable for various watercraft under strong vibrations. Specification: Item Type: Boat Gauge Material: Stainless Steel 316L Bezel + Anti Fog Glass Guard Rating: IP67, fully waterproof with excellent anti fog function Display: Fuel Level + Oil Pressure + Water Temperature + Voltage Backlight Color: Red (default), Green, Blue, White, Yellow, Yellow-Green, Orange, Purple (color changeable) Operating Voltage: 9-32VDC Operating Current: ≤60mA Operating Temperature: -30°C to +70°C Storage Temperature: -40°C to +85°C IP Rating: IP67, can operate underwater at 1m Fitment: For Boats, yachts, motorhomes, trucks, motorcycles Wiring: 1. Red Wire: +9-32VDC 2. Black Wire: Oil Level Signal Input 3. Orange Wire: Backlight (+) 4. Blue Wire: Power Supply Negative (-) 5. White Wire: Oil Pressure Signal Input 6. Purple Wire: Water Temperature Signal Input. Package List: 1 x Gauge 1 x Wire 1 x Mounting Base 2 x Nut 1 x User Manual Note: Ensure there is at least 70mm of space behind the opening after it has been made