85mm Car 3 In 1 Multi-functional GPS Speedometer Set | RPM Tachometer with Oil Pressure, Water Temp, Fuel Level, and Voltmeter

Keep your engine running smoothly with this multi-functional 85mm GPS speedometer set. Designed for cars, trucks, boats, and diesel or gasoline generators, this 3-in-1 gauge cluster gives you real-time data on speed, RPM, oil pressure, water temperature, fuel level, and voltage — all from a single, easy-to-read display.

This professional-grade instrument panel combines a GPS speedometer, tachometer, and four additional gauges into one compact 85mm housing. It helps you monitor critical engine vitals at a glance, so you can spot potential issues before they become costly repairs. Whether you're upgrading a classic car or outfitting a work truck, this all-in-one gauge set simplifies your dashboard.

The system comes with an IP67 waterproof rating and an anti-fog curved glass lens, making it reliable in harsh conditions. Installation is straightforward thanks to a multi-plug socket connection, and the 7-color backlight lets you customize the display to match your interior. With a stainless steel bezel and durable ABS construction, this gauge set is built to last.

From monitoring fuel levels to tracking engine temperature, this 3-in-1 GPS speedometer provides the information you need to drive with confidence. It works with both gasoline and diesel engines, making it a versatile choice for automotive, marine, and industrial use.

Key Features and Benefits

- 3-in-1 multi-function design that combines GPS speedometer, tachometer, oil pressure, water temp, fuel level, and voltmeter into one compact 85mm gauge set, saving dashboard space

• IP67 waterproof rating and anti-fog curved glass that protect the display from moisture and condensation, ensuring clear readings in wet or humid conditions

• 7-color backlight with adjustable settings (red, green, blue, white, yellow, cyan, purple, auto) that lets you match the gauge look to your vehicle's interior

• 316 stainless steel bezel with curved glass that resists corrosion and adds a premium, durable feel to your dashboard

• Multi-plug socket connecting way that simplifies installation and reduces wiring complexity

• Wide working voltage range of 9-32VDC that makes it compatible with most 12V and 24V vehicle electrical systems

Who Is This For

- Car enthusiasts upgrading a classic or custom vehicle with modern, multi-function instrumentation

• Truck and SUV owners who need a reliable, all-in-one gauge for monitoring engine performance on long hauls

• Boat owners looking for a waterproof, anti-fog gauge set for marine engine monitoring

• Diesel or gasoline generator operators who want real-time data on engine speed, temperature, and oil pressure

Usage Scenario

Mark was restoring a 1970s pickup truck and wanted to modernize the dashboard without losing its retro feel. He installed this 85mm 3-in-1 GPS speedometer set and immediately saw the benefit. The GPS speedometer gave him accurate readings without mechanical cables, while the tachometer and oil pressure gauge helped him tune the engine for better performance. The 7-color backlight let him choose a warm amber glow that matched his vintage interior perfectly. Now he drives with confidence, knowing exactly what his engine is doing at all times.

Micro Comparison

Unlike single-function gauges that require multiple dashboard holes and complex wiring, this 3-in-1 set consolidates six critical readings into one compact 85mm unit. It offers GPS-based speed measurement, so you don't need a mechanical speedometer cable. The IP67 waterproof rating and anti-fog glass also give it an edge over standard gauges that can fog up or fail in wet conditions. If you want a clean, modern dashboard with fewer components and more data, this all-in-one gauge set is the smarter choice.

Specifications

- Size: 85mm

• GPS Speedometer range: 0-120 km/h

• Fuel level: 0-190 ohms, 240-33 ohms, 10-180 ohms, 0-90 ohms (adjustable)

• Voltmeter: 8-16V

• Working voltage: 9-32VDC

• Working current: less than 100mA

• Working temperature: -30 to 80 degrees Celsius / -22 to 176 degrees Fahrenheit

• Storage temperature: -40 to 85 degrees Celsius / -40 to 185 degrees Fahrenheit

• Backlight: 7 color backlight (red default, green, blue, white, yellow, cyan, purple, auto)

• Waterproof rating: IP67

• Bezel material: 316 stainless steel

• Glass: Curved with anti-fog function

• Material: ABS

• Placement on vehicle: Front

Package Includes

- 1 x Oil Pressure Sensor (0-10Bar)

• 1 x Water Temp Sensor (1/8NPT)

• 1 x Tachometer Sensor (M16)

Why You Will Love It

You will love how this single gauge set replaces multiple separate instruments, cleaning up your dashboard and reducing installation time. The customizable backlight lets you personalize the look, while the waterproof and anti-fog design means it performs reliably in any weather. It gives you the peace of mind that comes from knowing your engine's key metrics at a glance.

Questions and Answers

Question: Is this gauge set compatible with both 12V and 24V vehicles?

Answer: Yes, it works with a wide voltage range of 9-32VDC, so it is compatible with most 12V and 24V vehicle electrical systems.

Question: Does the speedometer require a GPS signal to work?

Answer: Yes, the GPS speedometer uses satellite signals to calculate speed, so it needs a clear view of the sky for accurate readings.

Question: Can I change the backlight color while driving?

Answer: Yes, you can cycle through 7 colors (red, green, blue, white, yellow, cyan, purple, or auto mode) using the control button.

Question: Is this gauge set waterproof for use on a boat?

Answer: Yes, it has an IP67 waterproof rating, which means it is protected against water immersion and is suitable for marine use.

Question: What sensors are included in the package?

Answer: The package includes an oil pressure sensor (0-10Bar), a water temperature sensor (1/8NPT), and a tachometer sensor (M16).

Question: Can I adjust the fuel level sensor to match my vehicle's fuel sender?

Answer: Yes, the fuel level input is adjustable across four resistance ranges: 0-190 ohms, 240-33 ohms, 10-180 ohms, and 0-90 ohms.

Question: Does this gauge work with a diesel engine?

Answer: Yes, it is designed for both gasoline and diesel engines, including diesel generator engines.

Question: How do I install this gauge set?

Answer: Installation uses a multi-plug socket connection that simplifies wiring. You will need to connect the sensors and power according to the included instructions.

Question: What is the size of the gauge?

Answer: The gauge has a diameter of 85mm (about 3.35 inches).

Question: Will the glass fog up in high humidity?

Answer: No, the curved glass has an anti-fog function to prevent condensation from forming on the lens.