MOTOR METER RACING 85mm (3-3/8") Pro GPS Speedometer — 0–120 MPH, IP67 Waterproof, White LED

The MOTOR METER RACING 85mm (3-3/8") W Pro GPS Speedometer is a GPS-driven marine/vehicle gauge that displays speed from 0–120 MPH with an odometer, waterproof construction, and bright white LED illumination.

This precision instrument combines a high-torque stepper motor movement with GPS sensing to provide accurate speed readings without needing a mechanical cable. Built for harsh environments, it uses an IP67-rated housing, 316 stainless steel bezel and a convex clear lens to resist water, rust, fog and sun exposure. The package includes the speedometer, GPS sensor, installation harness and mounting hardware so you can fit it into existing 85mm (3-3/8") gauge openings.

How does the GPS speedometer get its speed readings?

The unit uses an external GPS sensor that receives satellite signals and feeds calculated speed data to the gauge. This removes the need for a drive cable, making it simpler to install and more reliable in marine or road applications where cables fail.

• External GPS sensor included for plug-and-play setup.
• Works on 12V and 24V negative-ground electrical systems.
• Stepper motor movement provides smooth, accurate needle response.
• Speed range from 0 to 120 MPH for common vehicle and marine use.

What durability features protect the gauge outdoors?

This speedometer is engineered for wet, salty, and sun-exposed environments. With IP67 sealing, a rustproof 316 stainless steel bezel and an ABS housing, the gauge resists water ingress, corrosion and UV damage that commonly shorten gauge life.

• IP67 waterproof rating—protected against immersion and dust.
• 316 stainless bezel resists rust in marine settings.
• Convex clear lens reduces fogging and improves readability.
• UV-resistant materials preserve color and clarity over time.

What convenience and memory functions does it offer?

The speedometer includes an odometer that logs total distance up to 99,999.9 miles and preserves settings when power is removed. A visible red needle, white LED backlighting and clear faceplate make readings legible in daytime or night driving.

• Odometer with up to 99,999.9 miles total mileage recording.
• Adjustable and power-off memory functions keep your settings intact.
• White LED illumination for clear night visibility.
• Black gauge face with red needle for high contrast readings.

What comes in the box and what should I know before buying?

The kit arrives ready for installation with the gauge, GPS sensor, power harness, fastening ring and printed installation instructions. It’s designed for 85mm (3-3/8") gauge cutouts; if you need a separate mounting cup, MOTOR METER RACING sells compatible 85mm mounting cups (ASINs listed).

• Included: speedometer, GPS sensor, wiring harness, fastening ring, instructions.
• Voltage compatibility: 12V / 24V negative ground systems only.
• Optional mounting cup available separately (black or silver finish, ASINs provided).
• One-year warranty on non-human-damage and free lifetime technical support.

Who is this for? The MOTOR METER RACING 85mm Pro GPS Speedometer suits boat owners, custom car or truck builders, and anyone replacing a failed mechanical speedometer who wants a cable-free, durable instrument. It’s especially useful where exposure to water or salt is a concern and where bright, easy-to-read instrumentation is required. Choose this model if you need a robust 85mm gauge that records mileage, holds settings after power loss, and arrives with the sensor and harness to get you installed quickly.