Description
Experience enhanced driving with the Speedhut 4″ 80 mph GPS Speedometer / 8K Tachometer Gauge (R4-DS9-REV). This innovative dual gauge integrates precise GPS technology for real-time speed measurement, removing the complexities of traditional speed sensors and the need for calibration due to tire size or gear ratios. Installation is straightforward, requiring only a 12V power connection and the included waterproof GPS antenna. The speedometer operates globally using free GPS data reception. Complementing the speedometer is a highly accurate tachometer, compatible with virtually any engine and tach signal exceeding one volt. Its advanced design ensures pointer accuracy even under demanding racing conditions, functioning across a wide range of engine pulse outputs (1/2 to 6 pulses per revolution). This robust gauge offers a comprehensive solution for monitoring crucial vehicle data with ease and reliability.
KEY FEATURES AND BENEFITS:
- Dual Functionality: Integrates both a GPS-based speedometer (0-80 MPH) and an 8K tachometer in one compact unit.
- Accurate GPS Speed: Delivers real-time speed readings without reliance on wheel sensors or calibration, using free global GPS signals.
- Universal Tachometer Compatibility: Works with virtually any engine using a tach signal over one volt and supports 1/2 to 6 pulses per revolution.
- Effortless Installation: Requires only a 12V power source and includes a waterproof GPS antenna with a 9.8 ft cable.
- High Precision: Features an internal microprocessor and high-torque stepper motor for accurate speed and RPM readings.
- Durable Design: Slim profile with billet aluminum bezel and weather-resistant construction ensures longevity and performance.
- Lifetime Warranty: Backed by a lifetime warranty on the electronic circuit board for peace of mind.
SPECIFICATIONS:
- Gauge Type: Dual GPS Speedometer / Tachometer
- Speedometer Range: 0-80 MPH
- Tachometer Range: 0-8,000 RPM
- Gauge Size: 4 inches
- Mounting Hole Size: 3.95 inches (100mm)
- Standard or Metric: Standard
- Power Requirement: 12V
- Included:
- GPS Antenna with 9.8 ft cable and male SMA connector
- 8 ft Tachometer Harness (1 Wire 2 Pin Connector)
- 3 ft Power & Lighting Harness
HOW TO USE:
- Mount the Gauge: Secure the 4-inch gauge in a 3.95-inch (100mm) diameter hole using the provided spin-lock ring.
- Connect Power: Attach the 3 ft Power & Lighting Harness to a 12V power source in your vehicle.
- Install GPS Antenna: Mount the waterproof GPS antenna in a location with a clear view of the sky. Connect the antenna cable (with the male SMA connector) to the speedometer unit.
- Connect Tachometer Harness: Attach the 8 ft Tachometer Harness (1 Wire 2 Pin Connector) to the appropriate tachometer signal output from your engine’s ignition system (compatible with distributor and distributor-less ignitions).
- Power On: Once all connections are secure, power on your vehicle. The GPS speedometer will acquire a satellite signal and begin displaying your speed within seconds. The tachometer will display the engine’s RPM.
BENEFITS OF USING THE SPEEDHUT 4″ 80 MPH GPS SPEEDOMETER / 8K TACHOMETER GAUGE (R4-DS9-REV):
- Precise Speed Readings: Utilizes GPS technology for highly accurate speed without the need for sensor calibration.
- Universal Tachometer Compatibility: Works with a wide range of engine types and ignition systems.
- Simplified Installation: GPS speedometer eliminates the complexities of traditional speed sensor wiring.
- Global Operation: The GPS speedometer functions anywhere in the world with free satellite data.
- Reliable Performance: Features an internal microprocessor and a high-torque stepper motor for accurate and stable readings, even in demanding conditions.
- Durable Construction: Built with a slim case, a solid billet aluminum bezel, and a weather-resistant design for long-lasting use.
- Peace of Mind: Backed by a lifetime warranty on the electronic circuit board.
- Quality Craftsmanship: Proudly made in America.
FEATURES:
- Real-time speed tracking via satellite-based positioning.
- Accurate engine speed measurement from 1/2 to 6 pulses per revolution.
- Internal processing for highly precise data interpretation.
- Stepper motor technology ensures smooth and accurate pointer movement.
- Streamlined gauge housing for easy integration into various dashboards.
- Robust aluminum outer ring for enhanced structural integrity and appearance.
- Designed to withstand various environmental conditions.
- Long-term assurance on the core electronics.
- Manufactured with attention to detail in the USA.





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