MOTOR METER RACING W Pro Series 85mm GPS Speedometer - Accurate

In this review of the MOTOR METER RACING W Pro Series 85mm GPS speedometer, the bottom line is simple: this gauge is for vehicle owners who want a compact, accurate digital speed readout with reliable illumination and a waterproof build. It stands out because the GPS-based sensor removes dependence on a vehicle speed pulse, making installation straightforward for cars, trucks, boats and motorcycles that use 12 or 24 volt negative ground systems. For buyers seeking a rugged, attractive 0-120 MPH instrument with a built-in odometer and clear white LED lighting, it delivers strong value.

Key Features

• 85mm size: The compact 85mm (3-3/8in) diameter fits many aftermarket gauge pods and keeps the dash layout tidy.
• GPS speed sensing: GPS sensor provides speed readings without tapping into the vehicle speed pulse, which simplifies installation on mixed platforms.
• Durable construction: IP67 waterproof rating, rustproof materials and an anti-fog lens help the gauge survive marine and outdoor use.
• Clear display: Black faceplate with a red needle and white LED illumination delivers high contrast and easy night readability.
• Odometer with memory: Built-in odometer records to 99999.9 miles and retains mileage with power-off memory for long-term tracking.
• Complete kit: The package includes the speedometer, GPS sensor, power harness and a visor to simplify a first-time install.

Who It's For

This gauge is aimed at drivers and riders who need a compact, visually clear speedometer for cars, trucks, boats or motorcycles that accept 12 or 24 volt negative ground systems. The GPS-based reading is particularly useful for older vehicles or custom builds where a vehicle speed sensor line is unavailable or inconvenient.

Those who should look elsewhere include buyers wanting a multi-function dash display with engine diagnostics or CAN-bus integration; this is a dedicated speedometer/odometer rather than a full instrument cluster. Also, if absolute long-term durability is the top priority, consider a model with extended proven field reliability records, since some users report mixed longevity.

Pros & Cons

Pros

• Easy install with included GPS sensor and harness, often set up in under 20 minutes.
• High-contrast black face, red needle and white LEDs offer clear day and night readability.
• IP67 waterproof build, 316 stainless steel bezel and convex lens suit marine environments.
• Odometer keeps up to 99999.9 miles with adjustable and power-off memory functions.

Cons

• Some users report mixed long-term durability, so occasional failures have been reported in the field.
• Not a multi-function or CAN-bus gauge; it only provides speed and odometer readings.

Specifications

Size	85mm (3-3/8in)
Speed Range	0 - 120 MPH
Power	12 / 24 Volt negative ground systems
Waterproof Rating	IP67
Materials	316 stainless steel bezel, ABS housing, convex clear lens
Odometer	Records to 99999.9 miles with power-off memory
Package Includes	Speedometer, GPS sensor, power harness, gauge visor, instructions

Our Verdict

The MOTOR METER RACING W Pro Series 85mm GPS speedometer is a solid choice for anyone who needs a straightforward, accurate speed readout with a durable, waterproof housing and clear illumination. It offers good value for custom builds, older vehicles and marine applications where a GPS sensor simplifies installation, though buyers seeking a multi-function display or the absolute longest track record of reliability should compare other options.

Frequently Asked Questions

Will this work on both 12V and 24V vehicles?
Yes, the gauge supports 12 and 24 volt negative ground systems.

Is the unit waterproof for boat use?
Yes, it has an IP67 waterproof rating and rustproof materials suitable for marine exposure.

Does the package include everything needed to install?
The package includes the speedometer, GPS sensor, power harness, gauge visor and installation instructions; a separate mounting cup is sold if needed.