Description
Speedhut 3-3/8″ BMW Design 120 mph GPS Speedometer (R3-S1-BMW) is a highly accurate vehicle speed measuring instrument that uses GPS technology to provide precise velocity readings without relying on traditional sensors or calibration. This gauge features easy installation with a simple 12V power connection and a waterproof GPS antenna for convenient placement. Operating globally with free GPS signals and no data transmission, it includes a slim case, user-friendly LCD screen, and a robust billet aluminum bezel with a spin-lock ring for secure mounting. Made in America and backed by a lifetime warranty on the electronic circuit board, this speedometer delivers reliability and quality for performance-focused drivers.
KEY FEATURES AND BENEFITS:
- Highly accurate speed readings using GPS technology.
- Eliminates need for traditional speed sensors and calibration.
- Simple installation with 12V power connection and waterproof GPS antenna.
- Global operation with free GPS signals and no data transmission.
- Slim case design with user-friendly LCD screen.
- Durable billet aluminum bezel and spin-lock ring for secure mounting.
- Lifetime warranty on the electronic circuit board.
- Made in America with high-quality craftsmanship.
SPECIFICATIONS:
- Gauge Type: Speedometer
- Speedometer Signal Type: GPS
- Range: 0-120 MPH
- Size: 3 3/8 inch
- Hole Size: 3.3 inches (84mm)
- Standard or Metric: Standard
- Included: 3 ft Power & Lighting Harness, GPS Antenna with 9.8 ft cable and male SMA connector, Gauge Mounting Ring
HOW TO USE:
- Mount the Gauge: Secure the 3-3/8″ Speedhut GPS Speedometer in the desired location on your dashboard using the included spin-lock ring. Ensure the gauge fits within a 3.3-inch (84mm) diameter hole.
- Connect the Power: Attach the red wire from the provided 3 ft Power & Lighting Harness to a 12V positive power source in your vehicle. Connect the black wire to a suitable ground.
- Install the GPS Antenna: Mount the waterproof GPS antenna in a location with a clear line of sight to the sky to ensure accurate GPS signals. The antenna includes a 9.8 ft cable and male SMA connector.
- Connect the Antenna: Plug the SMA connector of the GPS antenna cable into the corresponding port on the back of the Speedhut GPS Speedometer.
- Power On: Once all connections are secure, power on your vehicle. The speedometer will acquire a GPS signal and display your vehicle’s speed with no need for tire size or gear ratio calibration.
- Optional Remote Button: Consider requesting a remote button (not included) if the gauge face and buttons are difficult to access for advanced feature interaction.
BENEFITS OF USING THE SPEEDHUT 3-3/8″ BMW DESIGN 120 MPH GPS SPEEDOMETER (R3-S1-BMW):
- Provides highly accurate speed readings by using GPS technology, avoiding inaccuracies from mechanical sensors.
- Simplifies installation, requiring only basic power and antenna connections.
- Functions globally without subscription or additional setup for travel.
- Robust construction ensures longevity and reliable performance under various conditions.
- Sleek BMW-inspired design enhances vehicle interior aesthetics.
- Includes all necessary components for immediate installation.
- Lifetime warranty on the electronic circuit board ensures product quality and dependability.
FEATURES:
- Utilizes satellite signals for precise velocity measurement.
- Simple two-wire power connection required.
- Waterproof antenna designed for versatile mounting options.
- Internal processing unit provides immediate and accurate readings.
- Motorized needle movement for smooth and precise display.
- Low-profile casing for a clean, integrated appearance.
- Machined aluminum outer ring enhances visual appeal.
- Built to withstand a variety of environmental conditions.
- Backed by a long-term warranty on electronic components.
- Assembled with care in the United States.






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