Waterproof Digital GPS Speedometer with LCD Odometer | Adjustable Speed Gauge for Marine and Auto

Track your speed and distance with reliable GPS accuracy on any boat, car, motorcycle, or yacht. This waterproof digital speedometer uses a satellite signal to give you real-time readings without needing a mechanical connection.

This gauge is built to handle tough conditions. The waterproof housing protects the internal electronics from rain, splashes, and marine environments. The large LCD screen shows your current speed, total odometer, trip distance, and even a digital compass, all in one easy-to-read display. You can switch between knots, MPH, and km/h with a simple wire connection.

Installation is straightforward. The unit comes with a GPS antenna that locks onto satellites quickly, so you get accurate data from the moment you start moving. The 52mm gauge size fits standard dashboard openings, and the included mounting bracket makes it easy to secure in place. Whether you are restoring a classic car, upgrading a fishing boat, or building a custom motorcycle, this speedometer gives you modern functionality without complex wiring.

It works with a wide range of 9 to 32 VDC power systems, making it compatible with most 12V and 24V vehicles. The accumulated mileage data is saved even after a power loss, so you never lose your total distance record. The trip meter resets when you power down, which is useful for tracking individual journeys.

Key Features and Benefits

- Waterproof construction that protects the gauge from moisture and weather, so it performs reliably on boats and outdoor vehicles.

• GPS satellite signal provides speed readings without needing a wheel sensor, making installation simpler and more accurate.

• Large LCD display shows speed, odometer, trip distance, and compass direction, giving you all key data in one glance.

• Switchable units between knots, MPH, and km/h, so you can use the measurement style you prefer.

• Accumulated mileage saves after power loss, so your total distance record is never lost.

• 52mm gauge size fits standard dashboard cutouts, making it easy to replace an existing gauge or install in a new panel.

Who Is This For

- Boat owners who want a waterproof GPS speedometer that works in saltwater and freshwater environments.

• Car and truck enthusiasts upgrading their dashboard with a modern digital gauge.

• Motorcycle builders looking for a compact, weather-resistant speedometer for custom builds.

• Yacht owners who need a reliable backup or replacement speed gauge with GPS accuracy.

Usage Scenario

Mark took his fishing boat out on a foggy morning. His old mechanical speedometer had stopped working months ago, and he was guessing his speed to stay within the no-wake zone. He installed this GPS speedometer the night before, and within seconds of turning on the ignition, the display showed his exact speed in knots. The waterproof housing handled the spray from the bow, and the digital compass helped him keep his heading when visibility dropped. By the end of the trip, he had accurate trip data and a clear view of his total mileage.

Micro Comparison

Traditional mechanical speedometers rely on a cable or wheel sensor that can wear out or break, especially in wet conditions. This digital GPS speedometer uses satellite signals, so there are no moving parts to fail. It also gives you a digital compass and the ability to switch between knots, MPH, and km/h, which many basic gauges do not offer. The waterproof design makes it a better choice for marine use compared to standard automotive gauges.

Specifications

- Material: Metal

• Item Weight: 0.25 kg

• Operating Voltage: 9 to 32 VDC

• Operating Current: ≤100 mA

• Operating Temperature: -20 to 70°C / -4 to 158°F

• Storage Temperature: -30 to 80°C / -22 to 176°F

• Speed Display Range: 0 to 999.9

• Total Odometer Range: 0 to 999999

• Trip Distance Range: 0 to 999.9

• Digital Compass Range: 0 to 359°

• Gauge Diameter: 52 mm

Package Includes

- 1 x 52mm GPS Speedometer

• 1 x GPS Antenna

• 1 x Installation Bracket

• 1 x 52mm Gauge Holder

Why You Will Love It

You will love the confidence of knowing your exact speed and distance on the water or the road. The simple installation and reliable GPS signal mean you spend less time troubleshooting and more time enjoying your journey. It is a practical upgrade that adds modern convenience to any vehicle.

Questions and Answers

Question: Does this speedometer work on a 12V car?

Answer: Yes, it works on any 9 to 32 VDC system, including standard 12V cars and 24V trucks.

Question: Is the display easy to read in direct sunlight?

Answer: Yes, the LCD screen is designed to be readable in bright conditions, though direct glare may reduce visibility at certain angles.

Question: How do I switch between MPH and km/h?

Answer: You connect the yellow wire intermittently to the negative terminal to cycle through the units. The setting is saved automatically.

Question: Does the odometer data reset if I disconnect the battery?

Answer: The total accumulated mileage is saved and will not reset. The trip mileage resets when power is lost.

Question: Can I install this on a motorcycle without a fairing?

Answer: Yes, you can mount it using the included bracket or a standard 52mm gauge holder. The waterproof housing is suitable for exposed handlebar mounting.

Question: How long does it take to get a GPS signal?

Answer: Typically within a few seconds after powering on, especially if the antenna has a clear view of the sky.