Description
Experience a new level of driving information with the Speedhut 4-1/2″ 120 mph GPS Speedometer / 8K Tachometer (R45-DS2-REV). This integrated dual gauge provides precise speed and engine RPM readings in a single, easy-to-install unit. Utilizing advanced GPS technology for speed measurement, it eliminates the complexities of traditional speed sensors and calibration. Coupled with a highly accurate tachometer, this gauge delivers essential performance data for any driving scenario.
KEY FEATURES AND BENEFITS:
- GPS-Powered Speedometer: Provides real-time, accurate speed readings up to 120 MPH without the need for external sensors or calibration for tire size or gear ratios. Operates globally with free GPS.
- Precise Tachometer: Measures engine RPMs up to 8,000, compatible with various engine types and ignition systems (1/2 to 6 pulses per revolution with signals over one volt). Ensures accurate readings even in demanding conditions.
- Simplified Installation: Requires only a 12V power connection. The GPS speedometer eliminates the need for transmission sensor wiring. Features a slim case and spin-lock ring for straightforward mounting.
- Robust Construction: Features a solid billet aluminum bezel for enhanced durability and a premium look. The gauge is designed to be weather-resistant for reliable performance in various conditions.
- Accurate Readings: An internal microprocessor ensures precise data processing, while a high-torque stepper motor provides smooth and accurate pointer movement.
- Peace of Mind: Backed by a lifetime warranty on the electronic circuit board, reflecting its quality and dependability. Proudly made in America.
SPECIFICATIONS:
- Gauge Type: Dual GPS Speedometer / Tachometer
- Speedometer Range: 0-120 MPH
- Tachometer Range: 0-8,000 RPM
- Gauge Size: 4 1/2 inch
- Mounting Hole Size: 4.250 inches (108mm)
- Standard or Metric: Standard
- Included:
- Wiring Harness (2-Wire Cable)
- GPS Antenna with 9.8 ft long cable and male SMA connector
- 3 ft Power & Lighting Harness – for LED Lit Gauges and Clocks
HOW TO USE:
- Mount the Gauge: Secure the 4-1/2″ dual gauge in the desired location using the slim case and spin-lock ring. Ensure the mounting hole is 4.250 inches (108mm).
- Connect Power: Connect the 3 ft Power & Lighting Harness to a 12V power source in your vehicle. This harness also powers the LED illumination of the gauge.
- Install GPS Antenna: Mount the included GPS antenna in a location with a clear view of the sky. Connect the antenna to the gauge using the 9.8 ft cable with the male SMA connector.
- Connect Tachometer Signal: Use the 2-Wire Cable wiring harness to connect the tachometer input to your engine’s tachometer signal source (compatible with 1/2 to 6 pulses per revolution signals over one volt).
- Operation: Once powered and connected, the GPS speedometer will automatically acquire satellite signals to display your speed. The tachometer will display the engine’s RPM based on the signal input. No calibration for speed is required.
BENEFITS OF USING THE SPEEDHUT 4-1/2″ 120 MPH GPS SPEEDOMETER / 8K TACHOMETER (R45-DS2-REV):
- Experience enhanced driving awareness with accurate, real-time speed and engine RPM data displayed in a single, high-quality gauge.
- The GPS-based speedometer simplifies installation and eliminates the need for traditional speed sensors and calibration, making it ideal for various vehicle setups.
- The robust construction ensures long-lasting performance, while the clear display provides easy readability.
- Backed by a lifetime warranty, this gauge offers reliability and peace of mind for any driver.
FEATURES:
- Utilizes satellite signals for precise velocity measurement.
- Monitors engine revolutions per minute with high accuracy.
- Simple electrical connection required for operation.
- Eliminates the necessity for mechanical speed sensors.
- Suitable for global use with free GPS service.
- Durable outer ring crafted from solid aluminum.
- Designed to withstand various environmental conditions.
- Internal circuitry engineered for dependable readings.
- Motorized needle movement for smooth and exact indication.
- Space-saving design integrates two essential readings.






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