GPS Speedometer 85mm 0-120 MPH White Dial - Accurate Boat/Truck

In this review the MOTOR METER RACING W Pro 85mm GPS speedometer is judged as a focused instrument for anyone who needs a clean, compact speed readout and basic indicator functions. It is best for owners of cars, trucks, motorcycles and small boats who want a simple installation and a readable white dial with red illumination. The single biggest reason to buy is the built-in GPS speed sensing that eliminates mechanical drive connections and delivers a clear, modern gauge layout that looks and feels more expensive than its price suggests.

Key Features

• 85mm size: The compact 3-3/8' gauge fits standard 85mm cutouts for easy replacement or retrofit into many dash panels.
• GPS speed sensing: A standalone GPS sensor provides speed readings without a mechanical cable, simplifying installation and improving long-term reliability.
• IP67 waterproof housing: The rustproof, anti-fog and UV-resistant construction keeps the gauge usable in marine and exposed automotive environments.
• Clear optics and durable bezel: Convex clear lens with a 316 stainless steel bezel gives the face a premium look and resists corrosion in harsh conditions.
• Integrated indicators: Built-in turn signal and high beam functions add dash utility without extra modules.
• Memory odometer: The odometer records up to 99999.9 miles with adjustable and power-off memory so total mileage is preserved.

Who It's For

This speedometer is suited to DIY installers and vehicle owners who need a straightforward electronic speed readout that works on 12V or 24V negative ground systems. It is especially useful for motorcycles, classic cars, trucks and small craft where a tidy, waterproof gauge and simple wiring harness matter.

It is not the best choice for users who need multi-gauge dashboards, advanced telemetry, or factory-style CAN integration; buyers seeking professional fleet telematics or networked instrument clusters should look for a more fully featured unit. Also note that a separate mounting cup is sold if your dash requires one.

Pros & Cons

Pros

• Simple GPS-based speed sensing reduces installation complexity and removes mechanical cable wear.
• Robust materials and IP67 rating make it suitable for marine and exposed applications.
• Clean white dial with red needle and LED illumination reads clearly day or night.
• Includes wired GPS sensor and harness for a quick install and odometer memory retention.

Cons

• Some users reported mixed durability results, so installation care and wiring protection are important.
• Not intended for CAN bus or advanced dashboard networking; limited to the built-in indicators and odometer functions.

Specifications

Size	85mm (3-3/8'')
Speed range	0 - 120 MPH
Power	12 / 24 Volt negative ground systems
Ingress protection	IP67 waterproof
Housing & bezel	ABS plastic housing with 316 stainless steel bezel
Illumination & face	White dial, red needle, red LED illumination
Included accessories	GPS sensor, 1' wiring harness, installation instructions

Our Verdict

The MOTOR METER RACING W Pro 85mm GPS speedometer is a practical, value-oriented instrument for owners who want a neat, waterproof gauge with reliable GPS speed sensing and integrated indicators. It offers strong build quality and clear visuals for routine automotive and marine use, making it a solid buy for DIY installers who do not need advanced networked features.

Frequently Asked Questions

Does it work on trucks and motorcycles?
Yes, it supports 12V and 24V negative ground systems, so it is compatible with most trucks, cars and motorcycles.

Is the unit waterproof for marine use?
Yes, the gauge is rated IP67 and uses rustproof materials and UV-resistant components suitable for marine environments.

What comes in the box?
The package includes the speedometer, an external GPS sensor, a 1' wiring harness and installation instructions; a separate mounting cup is sold if needed.