MH 85mm 3-in-1 Gauge Tachometer Water Temp Oil Pressure | 12V Car Boat 8000RPM 7 Color Backlight

This 85mm 3-in-1 gauge combines a tachometer, water temperature gauge, and oil pressure gauge into a single, easy-to-read unit. Designed for 12V or 24V systems, it provides real-time engine data to help you monitor performance and prevent issues. The stepper motor drive ensures accurate pointer movement for reliable readings.

Built with a durable plastic shell and an IP67 protection class, this gauge can withstand harsh conditions, including being submerged in up to 1 meter of water. The 7-color backlight lets you customize the display to match your dashboard style, making it a functional and visual upgrade for your car, boat, or motorcycle.

Installation is straightforward with the included wiring harness. The gauge connects directly to your vehicle's power, RPM signal, temperature sensor, and oil pressure sensor. This all-in-one design reduces dashboard clutter and gives you a clean, professional look while keeping critical engine information at a glance.

Key Features and Benefits

- 3-in-1 multifunction design that combines tachometer, water temperature, and oil pressure into one gauge, saving space and simplifying monitoring

• Stepper motor drive that provides precise pointer movement for accurate readings of RPM, temperature, and pressure

• IP67 waterproof rating that allows the gauge to operate underwater at 1 meter depth, ensuring durability in wet environments

• 7-color backlight that lets you choose a color to match your dashboard or personal preference for a customized look

• Wide operating voltage range of 9 to 32VDC that makes it compatible with most 12V and 24V vehicles and boats

Who Is This For

- Car enthusiasts who want to monitor engine performance with a single, space-saving gauge

• Boat owners who need a waterproof gauge that can handle marine conditions and provide essential engine data

• Motorcycle riders looking to add a compact, reliable tachometer and temperature gauge to their setup

• DIY mechanics and custom builders who want an easy-to-install, all-in-one instrument for their project vehicle

Usage Scenario

Mark was restoring his classic car and wanted a clean dashboard without multiple separate gauges. He installed this 3-in-1 gauge and connected it to his engine's sensors. Now, he can see his RPM, water temperature, and oil pressure all in one glance. The blue backlight matches his interior perfectly, and the IP67 rating gives him peace of mind during rainy drives.

Micro Comparison

Unlike single-function gauges that require multiple holes in your dashboard and separate wiring, this 3-in-1 unit combines three essential readings into one 85mm housing. The stepper motor drive offers better accuracy than traditional air-core gauges, and the IP67 waterproof rating makes it suitable for both cars and boats where moisture is a concern.

Specifications

Material: Plastic Shell

Size: 85mm x 85mm x 85mm (3.35 in x 3.35 in x 3.35 in)

Operating Voltage: 9 to 32VDC

Operating Current: ≤100mA

Indicating Range:

• Tachometer: 0-3000rpm / 0-4000rpm / 0-6000rpm / 0-7000rpm / 0-8000rpm

• Water Temperature: 40 to 120 degrees Celsius (104 to 248 degrees Fahrenheit)

• Oil Pressure: 0 to 10 Bar (0 to 145 psi)

Protection Class: IP67

Operating Temperature: -30 to 80 degrees Celsius (-22 to 176 degrees Fahrenheit)

Storage Temperature: -40 to 85 degrees Celsius (-40 to 185 degrees Fahrenheit)

Package Includes

- 1 x 3-in-1 Gauge

• 1 x Wiring Harness

• 1 x User Manual

Why You Will Love It

You will love the convenience of having three critical engine readings in one compact gauge. The customizable 7-color backlight lets you match your vehicle's interior, while the waterproof design ensures long-lasting performance in any condition. It is a smart, reliable upgrade for anyone who values both function and style.

Questions and Answers

Question: Does this gauge work with a 12V car battery?

Answer: Yes, it operates on 9 to 32VDC, so it works perfectly with standard 12V car electrical systems.

Question: Can I use this gauge on a boat?

Answer: Yes, the IP67 rating makes it waterproof and suitable for marine use, even in wet conditions.

Question: How do I change the backlight color?

Answer: The backlight color is controlled by the green wire (pin 7). You can adjust it by connecting it to different signals or using a switch.

Question: What does the tachometer measure?

Answer: It measures engine RPM and can be set to ranges from 0-3000rpm up to 0-8000rpm, depending on your engine type.

Question: Is the wiring harness included?

Answer: Yes, the package includes a wiring harness with clearly labeled wires for easy installation.

Question: Can I use this gauge on a motorcycle?

Answer: Yes, it is suitable for motorcycles as long as your electrical system is 12V or 24V.

Question: How accurate is the oil pressure reading?

Answer: The stepper motor drive provides precise pointer movement, giving you accurate oil pressure readings from 0 to 10 Bar.