MOTOR METER RACING W Pro 85mm GPS Speedometer - Accurate 0-80 MPH

In this review of the MOTOR METER RACING W Pro 85mm GPS speedometer, the bottom line is straightforward: this gauge is for drivers and boaters who need a compact, easy-to-install GPS speedometer that reads accurately and survives harsh environments. The reviewer found the unit quick to pick up satellites, simple to wire into 12/24 V negative ground systems, and easy to read thanks to the white faceplate and red LED illumination. If you want a durable 3-3/8' gauge with a clear odometer and IP67 protection, this speedometer delivers what matters most.

Key Features

• GPS Speedometer: Provides accurate speed readings from 0 to 80 MPH without relying on vehicle speed sensors, which is helpful for older vehicles and custom installs.
• IP67 Waterproof: The unit is sealed against dust and can withstand temporary immersion, making it suitable for marine and exposed truck applications.
• Durable construction: Convex clear lens, 316 stainless steel bezel and ABS housing resist rust, UV and fogging for long-term legibility.
• Odometer memory: The digital odometer records up to 99,999.9 miles and retains mileage with adjustable and power-off memory functions for reliable total mileage tracking.
• Versatile power: Works with 9-32 VDC systems and uses less than 120 mA, so it fits 12 V and 24 V negative ground installations without demanding a lot of current.
• Complete kit: Ships with the speedometer, GPS sensor, 1' wiring harness and installation instructions to simplify fitting and setup.

Who It's For

The MOTOR METER RACING W Pro is aimed at car, truck, motorcycle and marine owners who want a reliable aftermarket speed readout that installs in a standard 85mm (3-3/8') dash opening. It suits DIY installers and professionals who appreciate a fast GPS lock, a clear white face with red LED accents, and a rustproof bezel for outdoors use.

Those who should look elsewhere include users who need a speedometer with higher top speed than 80 MPH or those who require CAN-bus or vehicle-speed-sensor integration, since this model is GPS-only. Also, buyers who need a gauge mount cup should purchase the separate mounting cup offered for the W PRO 85mm size.

Pros & Cons

Pros

• Accurate GPS-derived speed and quick satellite pickup make readings dependable in varied conditions.
• IP67 waterproofing and 316 stainless bezel provide durable outdoor and marine resistance.
• Clear white dial with red needle and red LED illumination offers excellent daytime and low-light visibility.
• Odometer stores up to 99,999.9 miles with power-off memory for long-term tracking.

Cons

• Top speed limited to 80 MPH, which may not suit high-performance vehicles or users needing higher range.
• Some buyers reported mixed build quality, so attention to installation and inspection on receipt is advisable.

Specifications

Size	85mm (3-3/8') diameter
Speed Range	0 - 80 MPH
Odometer	Up to 99,999.9 miles with memory
Power	9 - 32 VDC, 12/24 V negative ground compatible
Current	<120 mA
Ingress Protection	IP67 waterproof
Mounting Depth	2.11' (53.8mm); bezel outer 3.80' (96.5mm)

Our Verdict

The MOTOR METER RACING W Pro 85mm GPS speedometer is a practical, value-oriented gauge for drivers and boat owners who need dependable GPS speed readings and a durable, weatherproof build. Its clear display, long-lasting materials and retained odometer make it a sensible upgrade for stock dash replacements, though anyone needing speeds above 80 MPH or integrated vehicle sensor inputs should consider a different model.

Frequently Asked Questions

Does this unit work on both 12 V and 24 V vehicles?
Yes. The speedometer operates from 9-32 VDC and is compatible with 12 V and 24 V negative ground systems.

Is the speedometer waterproof for marine use?
Yes. It carries an IP67 rating and uses a 316 stainless steel bezel and ABS housing to resist rust and fogging in marine environments.

Will it track total mileage?
Yes. The digital odometer records up to 99,999.9 miles and includes adjustable and power-off memory functions to retain mileage.