Description
The Speedhut 4-1/2″ Quad Met WaterTemp/Volt/OilPSI/ Fuel Lev (R45-QG1-REV) is a versatile quad-function gauge that combines four essential vehicle readings into a single, space-saving unit. Designed for easy integration into your dashboard, it allows you to monitor water temperature, voltage, oil pressure, and fuel level at a glance. This efficient and visually cohesive solution is perfect for drivers seeking real-time engine and electrical data with minimal clutter. It includes dedicated sensors and wiring harnesses, ensuring a straightforward installation, and a warning light for added operational safety. Built to deliver clear and accurate metric readouts, this unit promotes smarter, safer driving decisions.
KEY FEATURES AND BENEFITS:
- Comprehensive Monitoring: Combines water temperature, voltage, oil pressure, and fuel level in one compact unit.
- Space-Efficient Design: Saves dashboard space by integrating four gauges into a single 4.5″ gauge.
- Accurate Temperature Readout: Displays water temperature in Celsius (50-125°C) for precise thermal management.
- Oil Pressure Tracking: Monitors up to 100 psi to ensure proper engine lubrication and performance.
- Voltage Monitoring: Covers 6-18V range to observe battery health and charging status.
- Fuel Level Indicator: Supports sensors with 300 ohms or less (sensor not included) for real-time fuel tracking.
- Integrated Warning Light: Alerts the driver to abnormal conditions for enhanced safety and preventative action.
- Easy Installation: Includes all necessary sensors and harnesses, with a secure mounting ring for a straightforward setup.
SPECIFICATIONS:
- Gauge Type: Quad Gauge
- Ranges:
- Voltage: 6-18 volts
- Water Temperature: 50-125 °C
- Fuel Level: E-F (compatible with sensors 300 ohms or less – not included)
- Oil Pressure: 0-100 psi
- Size: 4 1/2 inch (4.5″)
- Hole Size: 4.20 inch (107mm)
- Standard or Metric: Metric (Water Temperature)
- Warning Light: Yes
- Included:
- Speedhut Temperature Sensor
- Temperature Gauge Wiring Harness (2-Wire Cable)
- 3 ft Power & Lighting Harness – for LED Lit Gauges and Clocks
- Pressure Gauge Wiring Harness (3-Wire Cable)
- Wiring Harness (2-Wire Cable)
- Pressure Sensor – 100 psi
- Gauge Mounting Ring
HOW TO USE:
- Mount the Gauge: Cut a 4.20-inch (107mm) hole in your dashboard and insert the gauge. Secure it using the provided mounting ring.
- Connect the Power and Lighting: Attach the 3 ft Power & Lighting Harness and wire it to a switched 12V power source and a ground. This also powers the backlight.
- Install the Temperature Sensor: Mount the included sensor on the engine’s coolant system per the installation guide.
- Connect the Temperature Sensor: Use the 2-wire harness to connect the sensor to the back of the gauge.
- Install the Pressure Sensor: Secure the 100 psi sensor into the engine’s oil system at a suitable port.
- Connect the Pressure Sensor: Use the 3-wire cable to link the sensor to the gauge terminals.
- Connect the Voltage: Wire the 2-wire harness to a voltage source (typically ignition or accessory power) and ground.
- Connect the Fuel Level: Connect your vehicle’s fuel level sensor wires (300 ohms or less) to the gauge terminals using the wiring harness.
- Test the Gauge: Start the vehicle and verify the readings for all four parameters. Ensure the warning light functions properly.
BENEFITS OF USING THE SPEEDHUT 4-1/2″ QUAD MET WATERTEMP/VOLT/OILPSI/ FUEL LEV (R45-QG1-REV):
- Centralized Monitoring: Offers a unified solution for tracking multiple vital stats in one view.
- Cleaner Dashboard: Reduces clutter and simplifies the instrument cluster with one consolidated unit.
- Improved Safety: Real-time data and warning indicators allow early detection of issues before serious damage occurs.
- Metric Compatibility: Celsius temperature display suits international and metric-preferred drivers.
- Streamlined Installation: Comes with essential sensors and harnesses for a quick, trouble-free install.
- Visual Alerts: Built-in warning light helps avoid damage by notifying drivers of unsafe conditions.
FEATURES:
- Unified display for four vital vehicle parameters.
- Metric water temperature readings for global compatibility.
- Voltage monitoring ensures electrical system integrity.
- Oil pressure tracking helps prevent engine wear or failure.
- Real-time fuel level monitoring enhances trip planning.
- Programmable warning light for safety alerts.
- Large 4.5-inch display for enhanced visibility.
- Requires 4.20-inch (107mm) mounting hole for installation.
- Includes mounting ring for secure fitment.
- Dedicated temperature and pressure sensors included.
- Separate wiring harnesses for reliable connections.
- Compatible with most standard fuel level sensors (300 ohms or less).





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