WIDE APPLICATION: Wide range of application, suitable for ships, yachts, trucks, commercial vehicles, construction machinery. Small, light and easy to install, no other complicated steps are allowed. HIGH QUALITY: This Speedometer Gauge uses high-quality stainless steel materials to make the tachometer have shock-proof and corrosion- performance during use. It also has a function. PROFESSIONAL TOOL: High sensitivity and unrivaled accuracy motorcycle retro odometer gauge, more attractive and practical. The navigation pointer supports 8 direction pointers, bringing you more convenience. GOOD SUBSTITUTE: Speedometer is high reading capacity and practical, could match and replace prior equipment perfectly. Can freely switch the speed unit of kont, mph, km/h, which is convenient for you to watch and provides you with more convenience. Note: For detailed product parameters, refer to the instructions. Please confirm whether the product is suitable for your equipment before ordering, I wish you a happy life Specification: Condition: 100% Brand NewItem Type: SpeedometerMaterial: 316 Stainless Steel + ABS + PCOptional Color: Black Dial, White DialInput Parameters GPS Signal Working Voltage: 9-30VDC Working Current: <120mA Working Tempe ure: -20-70 Storage Tempe ure: -30-80 ing: IP67 Wiring Connection: 1. Black Line: Negative Power Supply (-) 2. Red Wire: 9-30VDCDisplay Function: SOG: Ground Speed TRIP: Single Mileage, Cleared when Power Off ODO: Accumulated Mileage, Saved when Power Off COG: Heading, Clockwise Angle of True North Battery Voltage: 9-30V (Not Inclouded) Navigation Pointer: 8 Directions Can freely switch Kont, mph, km/h speed Units. Dial Diameter: Approx. 85mm/ 3.3in Package List: 1 x Speedometer1 x Instruction1 x GPS Antenna